TED Recommendations

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A.J. Jacobs: How healthy living nearly killed me - test

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A.J. Jacobs: My journey to thank all the people responsible for my morning coffee - test

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A.J. Jacobs: My year of living biblically - test

• A.J. Jacobs How healthy living nearly killed me (33) test
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A.J. Jacobs: The evolution of the coffee cup lid - test

• A.J. Jacobs My journey to thank all the people responsible for my morning coffee (52) test
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A.J. Jacobs: The life cycle of a cup of coffee - test

• A.J. Jacobs My journey to thank all the people responsible for my morning coffee (44) test
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A.J. Jacobs: The world's largest family reunion ... we're all invited! - test

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Aaron Koblin: Visualizing ourselves ... with crowd-sourced data - test

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Aaron Morris: How your body could become its own diagnostic lab - test

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Aaron O'Connell: Making sense of a visible quantum object - test

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Abe Davis: New video technology that reveals an object's hidden properties - test

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Abha Dawesar: Life in the "digital now" - test

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Abhishek Gopalka: How motivation can fix public systems - test

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Abigail Disney: Dignity isn't a privilege. It's a worker's right - test

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Abigail Marsh: Why some people are more altruistic than others - test

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Abigail Spanberger: How to connect with people who are different than you - test

• Ricardo Semler How to run a company with (almost) no rules (37) test
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Abigail Washburn: Building US-China relations ... by banjo - test

• Martin Jacques Understanding the rise of China (34) test
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Abraham Verghese: A doctor's touch - test

• Dave deBronkart Meet e-Patient Dave (36) test
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Achenyo Idachaba: How I turned a deadly plant into a thriving business - test

• Anupam Mishra The ancient ingenuity of water harvesting (29) test
• David Sedlak 4 ways we can avoid a catastrophic drought (29) test
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• Kelsey Leonard Why lakes and rivers should have the same rights as humans (26) test

Achim Steiner: Humanity's planet-shaping powers -- and what they mean for the future - test

• Dan Gilbert The psychology of your future self (50) test
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Adam Alter: Why our screens make us less happy - test

• Ricardo Semler How to run a company with (almost) no rules (48) test
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Adam Carroll: What playing Monopoly with real money taught me about my kids--and humanity - test

• Michael Norton How to buy happiness (48) test
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Adam Davidson: What we learned from teetering on the fiscal cliff - test

• Scott Dinsmore How to find work you love (43) test
• Geoff Mulgan Post-crash, investing in a better world (43) test
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Adam Driver: My journey from Marine to actor - test

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• Leah Chase and Pat Mitchell An interview with the Queen of Creole Cuisine (27) test
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Adam Foss: A prosecutor's vision for a better justice system - test

• Robin Steinberg and Manoush Zomorodi The US is addicted to incarceration. Here's how to break the cycle (42) test
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• Alice Goffman How we're priming some kids for college — and others for prison (40) test

Adam Galinsky: How to speak up for yourself - test

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Adam Garone: Healthier men, one moustache at a time - test

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Adam Garske: How designing brand-new enzymes could change the world - test

• David Baker 5 challenges we could solve by designing new proteins (23) test
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Adam Grant: Are you a giver or a taker? - test

• Scott Dinsmore How to find work you love (49) test
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Adam Grant: How to stop languishing and start finding flow - test

• Ricardo Semler How to run a company with (almost) no rules (42) test
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Adam Grant: The surprising habits of original thinkers - test

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Adam Grant: What frogs in hot water can teach us about thinking again - test

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Adam Grosser: A mobile fridge for vaccines - test

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Adam Kucharski: How can we control the coronavirus pandemic? - test

• Bill Gates How we must respond to the coronavirus pandemic (38) test
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Adam Ostrow: After your final status update - test

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Adam Sadowsky: How to engineer a viral music video - test

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Adam Savage: How simple ideas lead to scientific discoveries - test

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Adam Savage: My love letter to cosplay - test

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Adam Savage: My obsession with objects and the stories they tell - test

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Adam Spencer: Why I fell in love with monster prime numbers - test

• Jeff Dekofsky The Infinite Hotel Paradox (33) test
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Adam de la Zerda: We can start winning the war against cancer - test

• Jimmy Lin A simple new blood test that can catch cancer early (54) test
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Adar Cohen: 3 ways to lead tough, unavoidable conversations - test

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Addison Anderson: The most groundbreaking scientist you've never heard of - test

• Tara Djokic This ancient rock is changing our theory on the origin of life (27) test
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Adeola Fayehun: Africa is a sleeping giant -- I'm trying to wake it up - test

• Fred Swaniker The leaders who ruined Africa, and the generation who can fix it (37) test
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Aditi Gupta: A taboo-free way to talk about periods - test

• Monique W. Morris Why black girls are targeted for punishment at school -- and how to change that (47) test
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Aditi Shankardass: A second opinion on developmental disorders - test

• Michael Merzenich Growing evidence of brain plasticity (48) test
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Adong Judith: How I use art to bridge misunderstanding - test

• Adar Cohen 3 ways to lead tough, unavoidable conversations (18) test
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Adora Svitak: What adults can learn from kids - test

• Dorsa Amir How the Industrial Revolution changed childhood (47) test
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Adrienne Mayor: Did the Amazons really exist? - test

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Adrienne Mayor: The Greek myth of Talos, the first robot - test

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Adrián Paenza: How folding paper can get you to the moon - test

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Afra Raymond: Three myths about corruption - test

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Agnes Binagwaho: How women are revolutionizing Rwanda - test

• Melinda Gates Let's put birth control back on the agenda (45) test
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• H.E. Ellen Johnson Sirleaf How women will lead us to freedom, justice and peace (41) test
• Cecile Richards The political progress women have made -- and what's next (41) test
• Rumaitha Al Busaidi Women and girls, you are part of the climate solution (40) test

Ahmad M. Hasnah: Rethinking education and celebrating the Arabic language - test

• Freeman Hrabowski 4 pillars of college success in science (34) test
• Andreas Schleicher Use data to build better schools (33) test
• Shai Reshef An ultra-low-cost college degree (33) test
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• Suzanne Talhouk Don't kill your language (31) test

Ahn Trio: A modern take on piano, violin, cello - test

• Joey Alexander An 11-year-old prodigy performs old-school jazz (71) test
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• David Byrne How architecture helped music evolve (55) test
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Aicha el-Wafi + Phyllis Rodriguez: The mothers who found forgiveness, friendship - test

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Ai-jen Poo: The work that makes all other work possible - test

• Noy Thrupkaew Human trafficking is all around you. This is how it works (39) test
• Anne-Marie Slaughter Can we all "have it all"? (38) test
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• Marian Wright Edelman Reflections from a lifetime fighting to end child poverty (36) test

Aimee Mullins: Changing my legs - and my mindset - test

• Aimee Mullins My 12 pairs of legs (39) test
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Aimee Mullins: My 12 pairs of legs - test

• Aimee Mullins Changing my legs - and my mindset (39) test
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Aimee Mullins: The opportunity of adversity - test

• Martin Pistorius How my mind came back to life — and no one knew (33) test
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Aimée Eubanks Davis: How your unique story can get you hired - test

• Jason Fried Why work doesn't happen at work (36) test
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Aja Monet and phillip agnew: A love story about the power of art as organizing - test

• Thelma Golden How art gives shape to cultural change (41) test
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Ajay Banga: Financial inclusion, the digital divide and other thoughts on the future of money - test

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Ajit Narayanan: A word game to communicate in any language - test

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Akash Manoj: A life-saving device that detects silent heart attacks - test

• Krishna Sudhir What happens during a heart attack? (64) test
• Sandeep Jauhar How your emotions change the shape of your heart (51) test
• Chuck Murry Can we regenerate heart muscle with stem cells? (50) test
• Robert Fischell My wish Three unusual medical inventions (49) test
• Gerd Gigerenzer Why do people fear the wrong things? (43) test

Akshita Agarwal: The paradox of value - test

• Anupam Mishra The ancient ingenuity of water harvesting (35) test
• Rob Harmon How to keep rivers and streams flowing (35) test
• Lana Mazahreh 3 thoughtful ways to conserve water (35) test
• David Sedlak 4 ways we can avoid a catastrophic drought (34) test
• Michael Pritchard How to make filthy water drinkable (34) test

Al Gore, Gloria Kasang Bulus, Nana Firman, Ximena Loría and Tim Guinee: Climate change is our reality. Here's how we're taking action - test

• Luisa Neubauer Why you should be a climate activist (54) test
• Britt Wray How climate change affects your mental health (52) test
• Christiana Figueres and Chris Anderson How we can turn the tide on climate (51) test
• Alok Sharma Why COP26 is our best chance for a greener future (48) test
• Per Espen Stoknes How to transform apocalypse fatigue into action on global warming (47) test

Al Gore: Averting the climate crisis - test

• Gordon Brown Global ethic vs. national interest (34) test
• Ricardo Semler How to run a company with (almost) no rules (34) test
• Jeff Skoll My journey into movies that matter (34) test
• Travis Kalanick Uber's plan to get more people into fewer cars (33) test
• David Carson Design and discovery (33) test

Al Gore: New thinking on the climate crisis - test

• Al Gore The case for optimism on climate change (41) test
• Mary Robinson Why climate change is a threat to human rights (39) test
• Luisa Neubauer Why you should be a climate activist (39) test
• David Wallace-Wells How we could change the planet's climate future (37) test
• John Kerry and Al Gore The US is back in the Paris Agreement. What's next? (37) test

Al Gore: The case for optimism on climate change - test

• James Hansen Why I must speak out about climate change (45) test
• Al Gore The new urgency of climate change (44) test
• Mary Robinson Why climate change is a threat to human rights (41) test
• Al Gore New thinking on the climate crisis (41) test
• Michael Shellenberger How fear of nuclear power is hurting the environment (39) test

Al Gore: The new urgency of climate change - test

• Christiana Figueres and Chris Anderson How we can turn the tide on climate (49) test
• Al Gore The case for optimism on climate change (44) test
• John Kerry and Al Gore The US is back in the Paris Agreement. What's next? (44) test
• John Marshall 3 strategies for effectively talking about climate change (42) test
• John Doerr and Hal Harvey How to decarbonize the grid and electrify everything (42) test

Al Gore: What comes after An Inconvenient Truth? - test

• Al Gore New thinking on the climate crisis (36) test
• Al Gore The case for optimism on climate change (33) test
• Joe Lassiter We need nuclear power to solve climate change (33) test
• James Hansen Why I must speak out about climate change (32) test
• Rob Dunbar Discovering ancient climates in oceans and ice (32) test

Al Seckel: Visual illusions that show how we (mis)think - test

• Shonda Rhimes and Cyndi Stivers The future of storytelling (27) test
• The TED Interview The race to build AI that benefits humanity with Sam Altman (24) test
• Paul Bennett Design is in the details (24) test
• Arthur Ganson Moving sculpture (23) test
• David Kelley Human-centered design (23) test

Al Vernacchio: Sex needs a new metaphor. Here's one ... - test

• Pere Estupinyà The science of sex (23) test
• Colin Camerer When you're making a deal, what's going on in your brain? (22) test
• Christopher Ryan Are we designed to be sexual omnivores? (22) test
• Sir Ken Robinson Bring on the learning revolution! (21) test
• Steve Keil A manifesto for play, for Bulgaria and beyond (21) test

Alaa Murabit: What my religion really says about women - test

• Cecile Richards The political progress women have made -- and what's next (49) test
• Shad Begum How women in Pakistan are creating political change (47) test
• Kavita Ramdas Radical women, embracing tradition (47) test
• Madeleine Albright On being a woman and a diplomat (43) test
• H.E. Ellen Johnson Sirleaf How women will lead us to freedom, justice and peace (43) test

Alain de Botton: A kinder, gentler philosophy of success - test

• Barry Schwartz What role does luck play in your life? (40) test
• Scott Dinsmore How to find work you love (39) test
• Bill Burnett 5 steps to designing the life you want (38) test
• Johann Hari This could be why you're depressed or anxious (37) test
• Kate Bowler "Everything happens for a reason" -- and other lies I've loved (37) test

Alain de Botton: Atheism 2.0 - test

• Karen Armstrong My wish The Charter for Compassion (42) test
• Chelsea Shields How I'm working for change inside my church (40) test
• Karen Armstrong Let's revive the Golden Rule (39) test
• Sharon Brous It's time to reclaim religion (38) test
• Daniel Lismore My life as a work of art (36) test

Alan Crickmore: How storytelling helps parents in prison stay connected to their kids - test

• Helen Pearson Lessons from the longest study on human development (36) test
• Georgette Mulheir The tragedy of orphanages (32) test
• Claudia Miner A new way to get every child ready for kindergarten (32) test
• Kiran Sethi Kids, take charge (31) test
• Shukla Bose Teaching one child at a time (31) test

Alan Eustace: I leapt from the stratosphere. Here's how I did it - test

• Steve Truglia A leap from the edge of space (34) test
• Bill Stone Inside the world's deepest caves (24) test
• Gwynne Shotwell SpaceX's plan to fly you across the globe in 30 minutes (24) test
• Anil Ananthaswamy What it takes to do extreme astrophysics (23) test
• Chris Hadfield What I learned from going blind in space (22) test

Alan Kay: A powerful idea about ideas - test

• Alison Gopnik What do babies think? (34) test
• Sugata Mitra The child-driven education (32) test
• Sugata Mitra Build a School in the Cloud (31) test
• Gever Tulley 5 dangerous things you should let your kids do (31) test
• Caleb Chung Playtime with Pleo, your robotic dinosaur friend (31) test

Alan Lupack: Is there any truth to the King Arthur legends? - test

• Ian Barnes What archaeology and DNA can teach us about prehistoric migration (15) test
• Philip Freeman The rise and fall of the Celtic warriors (14) test
• Andrew McDonald The rise and fall of the Kingdom of Man (13) test
• Mark Robinson How the Normans changed the history of Europe (13) test
• Billy Collins Everyday moments, caught in time (13) test

Alan Russell: The potential of regenerative medicine - test

• Anthony Atala Printing a human kidney (43) test
• Molly Stevens A new way to grow bone (42) test
• Anthony Atala Growing new organs (41) test
• Craig A. Kohn What are stem cells? (40) test
• Nabiha Saklayen Could you recover from illness ... using your own stem cells? (39) test

Alan Siegel: Let's simplify legal jargon! - test

• Steve Howard Let's go all-in on selling sustainability (28) test
• Scott Dinsmore How to find work you love (27) test
• Leticia Gasca Una nueva manera de hablar del fracaso en los negocios (27) test
• Shivani Siroya A smart loan for people with no credit history (yet) (26) test
• Ricardo Semler How to run a company with (almost) no rules (26) test

Alan Smith: Why you should love statistics - test

• Mona Chalabi 3 ways to spot a bad statistic (54) test
• Scott Dinsmore How to find work you love (46) test
• Tanya Menon The secret to great opportunities? The person you haven't met yet (42) test
• iO Tillett Wright Fifty shades of gay (42) test
• John Biewen The lie that invented racism (42) test

Alanna Shaikh: How I'm preparing to get Alzheimer's - test

• Beth Malone How my dad's dementia changed my idea of death (and life) (33) test
• Samuel Cohen Alzheimer's is not normal aging — and we can cure it (33) test
• Scott Dinsmore How to find work you love (30) test
• Marvin Minsky Health and the human mind (30) test
• Yvonne van Amerongen The "dementia village" that's redefining elder care (29) test

Alanna Shaikh: Why COVID-19 is hitting us now -- and how to prepare for the next outbreak - test

• David Heymann What we do (and don't) know about the coronavirus (47) test
• Georges C. Benjamin The secret weapon against pandemics (47) test
• Daniel Kraft How COVID-19 transformed the future of medicine (45) test
• Joia Mukherjee How to quickly scale up contact tracing across the US (45) test
• Karen DeSalvo How tech companies can help combat the pandemic and reshape public health (42) test

Alasdair Harris: How a handful of fishing villages sparked a marine conservation revolution - test

• The Nature Conservancy An ingenious proposal for scaling up marine protection (39) test
• Enric Sala Glimpses of a pristine ocean (37) test
• Ashwin Naidu The link between fishing cats and mangrove forest conservation (34) test
• Jackie Savitz Save the oceans, feed the world! (33) test
• Ayana Elizabeth Johnson and Jennifer Jacquet Will the ocean ever run out of fish? (32) test

Alastair Gray: How fake handbags fund terrorism and organized crime - test

• Olga Yurkova Inside the fight against Russia's fake news empire (26) test
• Ricardo Semler How to run a company with (almost) no rules (25) test
• Joseph Pine What consumers want (25) test
• Caleb Barlow Where is cybercrime really coming from? (24) test
• Yang Lan The generation that's remaking China (22) test

Alastair Parvin: Architecture for the people by the people - test

• Mark Raymond Victims of the city (42) test
• Cameron Sinclair My wish A call for open-source architecture (37) test
• Linus Torvalds The mind behind Linux (37) test
• Greg Lynn Organic algorithms in architecture (36) test
• Vishaan Chakrabarti How we can design timeless cities for our collective future (36) test

Albert-László Barabási: The real relationship between your age and your chance of success - test

• Chieh Huang How to know if it's time to change careers (35) test
• Richard St. John Success is a continuous journey (30) test
• Sarah Ellis and Helen Tupper The best career path isn't always a straight line (28) test
• Dominic Price What's your happiness score? (27) test
• Dan Pink The puzzle of motivation (26) test

Alberto Cairo: There are no scraps of men - test

• Ricardo Semler How to run a company with (almost) no rules (39) test
• Scott Dinsmore How to find work you love (38) test
• Jeremy Gilley One day of peace (36) test
• Roy Bahat and Bryn Freedman How do we find dignity at work? (34) test
• Sakena Yacoobi How I stopped the Taliban from shutting down my school (34) test

Alec Soth and Stacey Baker: This is what enduring love looks like - test

• Leah Chase and Pat Mitchell An interview with the Queen of Creole Cuisine (25) test
• Nora McInerny We don't "move on" from grief. We move forward with it (25) test
• Eve Ensler What security means to me (25) test
• Sakena Yacoobi How I stopped the Taliban from shutting down my school (25) test
• Eve Ensler Happiness in body and soul (25) test

Alejandro Aravena: My architectural philosophy? Bring the community into the process - test

• Jaime Lerner A song of the city (38) test
• Xavier Vilalta Architecture at home in its community (37) test
• Ma Yansong Urban architecture inspired by mountains, clouds and volcanoes (35) test
• Alastair Parvin Architecture for the people by the people (35) test
• Amanda Burden How public spaces make cities work (35) test

Alejandro Chaskielberg: Cómo usar el arte de la fotografía para restaurar la memoria - test

• Becci Manson (Re)touching lives through photos (45) test
• Erin Sullivan Does photographing a moment steal the experience from you? (35) test
• JR My wish Use art to turn the world inside out (35) test
• Scott Dinsmore How to find work you love (34) test
• JR One year of turning the world inside out (33) test

Alejandro Durán: How I use art to tackle plastic pollution in our oceans - test

• Dianna Cohen Tough truths about plastic pollution (29) test
• Andrew Forrest A radical plan to end plastic waste (27) test
• Marian Bantjes Intricate beauty by design (26) test
• Guy Winch How to turn off work thoughts during your free time (25) test
• Sarah Sze How we experience time and memory through art (25) test

Alejandro Sánchez Alvarado: To solve old problems, study new species - test

• E.O. Wilson My wish Build the Encyclopedia of Life (42) test
• Tara Djokic This ancient rock is changing our theory on the origin of life (41) test
• Penelope Boston There might just be life on Mars (40) test
• Sarah Rugheimer The search for microscopic aliens (39) test
• Paul Snelgrove A census of the ocean (38) test

Aleph Molinari: Let's bridge the digital divide! - test

• Hector Ruiz The thinking behind 50x15 (40) test
• Hans Rosling Global population growth, box by box (40) test
• Douglas Rushkoff How to be "Team Human" in the digital future (38) test
• Andrew McAfee Are droids taking our jobs? (36) test
• Don Tapscott Four principles for the open world (36) test

Alessandra Orofino: It’s our city. Let’s fix it - test

• Robert Muggah The biggest risks facing cities -- and some solutions (55) test
• Robert Muggah How to protect fast-growing cities from failing (52) test
• Kent Larson Brilliant designs to fit more people in every city (48) test
• Eduardo Paes The 4 commandments of cities (48) test
• Dean Kamen To invent is to give (47) test

Alessandro Acquisti: What will a future without secrets look like? - test

• JP Rangaswami Information is food (44) test
• David McCandless The beauty of data visualization (42) test
• Kenneth Cukier Big data is better data (40) test
• Madhumita Murgia How data brokers sell your identity (40) test
• Malte Spitz Your phone company is watching (38) test

Alex Apella: Huellas de la discriminación - test

• R. Alan Brooks When the world is burning, is art a waste of time? (28) test
• Jon Lowenstein Family, hope and resilience on the migrant trail (28) test
• Deb Willis and Hank Willis Thomas A mother and son united by love and art (27) test
• Bill Gates Mosquitos, malaria and education (27) test
• Judith Heumann Our fight for disability rights -- and why we're not done yet (25) test

Alex Edmans: What to trust in a "post-truth" world - test

• Karen Eber How your brain responds to stories -- and why they're crucial for leaders (42) test
• Giorgia Lupi How we can find ourselves in data (36) test
• Mona Chalabi 3 ways to spot a bad statistic (35) test
• Tim Berners-Lee The next web (34) test
• Jennifer Zhu Scott Why you should get paid for your data (33) test

Alex Gendler: A brief history of chess - test

• Garry Kasparov Don't fear intelligent machines. Work with them (39) test
• Brenda Romero Gaming for understanding (29) test
• Seth Priebatsch The game layer on top of the world (27) test
• John Hunter Teaching with the World Peace Game (26) test
• Jane McGonigal Gaming can make a better world (25) test

Alex Gendler: A day in the life of a Cossack warrior - test

• Jackson Katz Violence against women -- it's a men's issue (26) test
• Michael Kimmel Why gender equality is good for everyone — men included (25) test
• Stew "Black Men Ski" (24) test
• Justin Baldoni Why I'm done trying to be "man enough" (23) test
• Elizabeth Nyamayaro An invitation to men who want a better world for women (23) test

Alex Gendler: Building the world's largest (and most controversial) power plant - test

• Eric Liu How to understand power (42) test
• Jeremy Heimans What new power looks like (41) test
• TED-Ed How much land does it take to power the world? (39) test
• TED-Ed The world's biggest battery looks nothing like a battery (36) test
• Joseph Nye Global power shifts (36) test

Alex Gendler: Can you outsmart this logical fallacy? - test

• Marcus du Sautoy The paradox at the heart of mathematics Gödel's Incompleteness Theorem (19) test
• Touria El Glaoui Inside Africa's thriving art scene (17) test
• Liv Boeree 3 lessons on decision-making from a poker champion (15) test
• Laolu Senbanjo "The Sacred Art of the Ori" (15) test
• Sara Garofalo The psychology behind irrational decisions (15) test

Alex Gendler: Can you solve the Alice in Wonderland riddle? - test

• Arthur Benjamin The magic of Fibonacci numbers (32) test
• Dan Finkel Can you solve the world's most evil wizard riddle? (19) test
• Wajdi Mohamed Ratemi The mathematical secrets of Pascal's triangle (17) test
• Margaret Heffernan Dare to disagree (17) test
• Dennis Wildfogel How big is infinity? (17) test

Alex Gendler: Can you solve the bridge riddle? - test

• Laura Vanderkam How to gain control of your free time (32) test
• Brittney Cooper The racial politics of time (29) test
• Alexander Leitner Can time be wasted? (27) test
• Ian Firth Bridges should be beautiful (27) test
• Andrew Zimmerman Jones Does time exist? (26) test

Alex Gendler: Can you solve the death race riddle? - test

• Daniel Finkel Can you solve the dark matter fuel riddle? (22) test
• Taylor Wilson My radical plan for small nuclear fission reactors (15) test
• Judd A. Schorr Can you solve the airplane riddle? (13) test
• Daniel Alexander Jones What to do when everything feels broken (12) test
• Damion Searls How does the Rorschach inkblot test work? (11) test

Alex Gendler: Can you solve the dragon jousting riddle? - test

• Gordon Hamilton Can you solve the Mondrian squares riddle? (14) test
• Gonzalo Vilariño How Argentina's blind soccer team became champions (14) test
• Christian Rudder Inside OKCupid The math of online dating (12) test
• Stuart Brown Play is more than just fun (11) test
• Tim Brown Tales of creativity and play (11) test

Alex Gendler: Can you solve the giant iron riddle? - test

• TED-Ed The world's biggest battery looks nothing like a battery (37) test
• Dolly Chugh How to let go of being a "good" person -- and become a better person (17) test
• Peter Doolittle How your "working memory" makes sense of the world (15) test
• Jessica Shortall The US needs paid family leave -- for the sake of its future (15) test
• Sebastian Deterding What your designs say about you (15) test

Alex Gendler: Can you solve the monster duel riddle? - test

• Dan Finkel Can you solve the rogue AI riddle? (52) test
• Lucas Husted Game theory challenge Can you predict human behavior? (19) test
• Pavan Sukhdev Put a value on nature! (17) test
• Baratunde Thurston How to deconstruct racism, one headline at a time (15) test
• Dan Finkel Can you solve the riddle and escape Hades? (14) test

Alex Gendler: Can you solve the multiplying rabbits riddle? - test

• Alex Rosenthal Can you solve the rogue submarine riddle? Difficulty level Master (32) test
• George Zaidan and Charles Morton How do cancer cells behave differently from healthy ones? (30) test
• Arthur Benjamin A performance of "Mathemagic" (28) test
• Nabiha Saklayen Could you recover from illness ... using your own stem cells? (26) test
• Tanya Khovanova Can you solve the Leonardo da Vinci riddle? (25) test

Alex Gendler: Can you solve the pirate riddle? - test

• Nicki Beaman Griffin The fight for the right to vote in the United States (21) test
• Jacob Soboroff Why do Americans vote on Tuesdays? (20) test
• David Bismark E-voting without fraud (19) test
• David Lunney Where does gold come from? (14) test
• Simon Anholt Who would the rest of the world vote for in your country's election? (14) test

Alex Gendler: Can you solve the prisoner hat riddle? - test

• Vernā Myers How to overcome our biases? Walk boldly toward them (40) test
• Fabio Pacucci Can a black hole be destroyed? (33) test
• D-L Stewart Scenes from a Black trans life (32) test
• Fabio Pacucci Could the Earth be swallowed by a black hole? (30) test
• Baratunde Thurston How to deconstruct racism, one headline at a time (30) test

Alex Gendler: Can you solve the rebel supplies riddle? - test

• Dennis Shasha Can you solve the stolen rubies riddle? (38) test
• Yossi Elran Can you solve the prisoner boxes riddle? (30) test
• Iseult Gillespie The myth of Pandora's box (22) test
• Dustin Yellin A journey through the mind of an artist (22) test
• Daniel Finkel Can you solve the time travel riddle? (19) test

Alex Gendler: Can you solve the secret sauce riddle? - test

• Arthur Benjamin A performance of "Mathemagic" (34) test
• Alex Rosenthal Can you solve the rogue submarine riddle? Difficulty level Master (31) test
• Tanya Khovanova Can you solve the Leonardo da Vinci riddle? (29) test
• Dan Finkel Can you solve the giant cat army riddle? (28) test
• Christian Rudder Inside OKCupid The math of online dating (25) test

Alex Gendler: Can you solve the three gods riddle? - test

• Christian Rudder Inside OKCupid The math of online dating (30) test
• Noriko Arai Can a robot pass a university entrance exam? (25) test
• Alex Gendler Can you solve the secret sauce riddle? (23) test
• Derren Brown Mentalism, mind reading and the art of getting inside your head (23) test
• Dan Finkel 5 ways to share math with kids (21) test

Alex Gendler: Demolition, disease, and death Building the Panama Canal - test

• Stefan Al Why isn't the Netherlands underwater? (20) test
• Dan Finkel Can you solve the rogue AI riddle? (20) test
• Anupam Mishra The ancient ingenuity of water harvesting (19) test
• Rob Dunbar Discovering ancient climates in oceans and ice (19) test
• Rose George Inside the secret shipping industry (18) test

Alex Gendler: Epic Engineering Building the Brooklyn Bridge - test

• Ian Firth Bridges should be beautiful (34) test
• Aziza Chaouni How I brought a river, and my city, back to life (21) test
• Steven Strogatz The science of sync (19) test
• Alex Gendler How the world's tallest skyscraper was built (18) test
• Andrew Blum Discover the physical side of the internet (17) test

Alex Gendler: Everything changed when the fire crystal got stolen - test

• Emily Parsons-Lord Art made of the air we breathe (20) test
• Danielle Torley I stepped out of grief -- by dancing with fire (19) test
• Arunabha Ghosh 5 steps for clean air in India (15) test
• Tomás Saraceno Would you live in a floating city in the sky? (15) test
• Alex Rosenthal The World Machine | Think Like A Coder, Ep 10 (14) test

Alex Gendler: History vs. Christopher Columbus - test

• Scott Dinsmore How to find work you love (33) test
• John Lewis and Bryan Stevenson The fight for civil rights and freedom (32) test
• Kevin Bales How to combat modern slavery (31) test
• Dolores Huerta How to overcome apathy and find your power (31) test
• Tara Houska The Standing Rock resistance and our fight for indigenous rights (31) test

Alex Gendler: History vs. Napoleon Bonaparte - test

• Marlene Daut The first and last king of Haiti (21) test
• Matt Anticole Why the metric system matters (18) test
• Matteo Salvadore The imaginary king who changed the real world (17) test
• António Guterres Refugees have the right to be protected (17) test
• George Papandreou Imagine a European democracy without borders (17) test

Alex Gendler: How do ventilators work? - test

• Emily Parsons-Lord Art made of the air we breathe (38) test
• María Neira This is your brain on air pollution (29) test
• Eve Gaus and Vanessa Ruiz Why is pneumonia so dangerous? (28) test
• Arunabha Ghosh 5 steps for clean air in India (26) test
• Romain Lacombe A personal air-quality tracker that lets you know what you're breathing (25) test

Alex Gendler: How does impeachment work? - test

• Peter Paccone How do US Supreme Court justices get appointed? (27) test
• Eric Liu How to understand power (25) test
• Joseph Nye Global power shifts (25) test
• Jeremy Heimans What new power looks like (24) test
• Belinda Stutzman How is power divided in the United States government? (23) test

Alex Gendler: How one design flaw almost toppled a skyscraper - test

• Ma Yansong Urban architecture inspired by mountains, clouds and volcanoes (26) test
• Stefan Al Will there ever be a mile-high skyscraper? (26) test
• Moshe Safdie Building uniqueness (24) test
• Alex Gendler How the world's tallest skyscraper was built (24) test
• Norman Foster My green agenda for architecture (22) test

Alex Gendler: How the world's longest underwater tunnel was built - test

• Miru Kim My underground art explorations (21) test
• Elon Musk The future we're building -- and boring (17) test
• David Lee Why jobs of the future won't feel like work (16) test
• Sougwen Chung Why I draw with robots (16) test
• Alex Gendler Epic Engineering Building the Brooklyn Bridge (15) test

Alex Gendler: How the world's tallest skyscraper was built - test

• Stefan Al Will there ever be a mile-high skyscraper? (36) test
• Stefan Al Could we build a wooden skyscraper? (30) test
• Marc Kushner Why the buildings of the future will be shaped by ... you (28) test
• Michael Green Why we should build wooden skyscrapers (26) test
• Ole Scheeren Why great architecture should tell a story (24) test

Alex Gendler: How tsunamis work - test

• Nick Pizzo The physics of surfing (46) test
• Lana Mazahreh 3 thoughtful ways to conserve water (44) test
• David Sedlak 4 ways we can avoid a catastrophic drought (43) test
• Balsher Singh Sidhu Are we running out of clean water? (41) test
• Rob Harmon How to keep rivers and streams flowing (41) test

Alex Gendler: Myths and misconceptions about evolution - test

• Harvey Fineberg Are we ready for neo-evolution? (37) test
• Laurence Hurst Is human evolution speeding up or slowing down? (32) test
• Prosanta Chakrabarty Four billion years of evolution in six minutes (26) test
• Lara Durgavich An evolutionary perspective on human health and disease (23) test
• Jennifer Kahn Gene editing can now change an entire species -- forever (22) test

Alex Gendler: The Egyptian myth of Isis and the seven scorpions - test

• Alex Gendler The Egyptian myth of the death of Osiris (30) test
• Rabiaa El Garani Hope and justice for women who've survived ISIS (21) test
• Aicha el-Wafi + Phyllis Rodriguez The mothers who found forgiveness, friendship (16) test
• Suheir Hammad Poems of war, peace, women, power (15) test
• Yasmin Green How technology can fight extremism and online harassment (15) test

Alex Gendler: The Egyptian myth of the death of Osiris - test

• Alex Gendler The Egyptian myth of Isis and the seven scorpions (30) test
• Tom Honey Why would God create a tsunami? (20) test
• Niro Sivanathan The counterintuitive way to be more persuasive (16) test
• Anjali Kumar My failed mission to find God -- and what I found instead (15) test
• Geoff Emberling What happened to the lost Kingdom of Kush? (14) test

Alex Gendler: The myth of Hercules - test

• Iseult Gillespie The myth of Jason and the Argonauts (17) test
• Iseult Gillespie The myth of Jason, Medea, and the Golden Fleece (10) test
• Ray Zahab My trek to the South Pole (9) test
• Iseult Gillespie The tale of the boy who tricked the Devil (9) test
• Alex Gendler The Egyptian myth of the death of Osiris (9) test

Alex Gendler: The myth of Loki and the master builder - test

• Scott A. Mellor How Thor got his hammer (28) test
• Kay Almere Read The Aztec myth of the unlikeliest sun god (20) test
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• Ronald Rael An architect's subversive reimagining of the US-Mexico border wall (19) test
• Megan Campisi and Pen-Pen Chen What makes the Great Wall of China so extraordinary (18) test

Alex Gendler: The myth of Sisyphus - test

• Nina Medvinskaya Is life meaningless? And other absurd questions (20) test
• Shunan Teng How the Monkey King escaped the underworld (14) test
• Tom Honey Why would God create a tsunami? (14) test
• Billy Graham On technology and faith (14) test
• Alex Gendler The myth of Loki and the master builder (13) test

Alex Gendler: The wars that inspired Game of Thrones - test

• Mark Robinson and Alex Gendler History vs. Henry VIII (22) test
• Marlene Daut The first and last king of Haiti (18) test
• Jeremy Heimans What new power looks like (16) test
• Andrew McDonald The rise and fall of the Kingdom of Man (15) test
• Joseph Nye Global power shifts (15) test

Alex Gendler: The woman who stared at the sun - test

• Miho Janvier Lessons from a solar storm chaser (22) test
• Marjan van Aubel The beautiful future of solar power (21) test
• Dave Brain What a planet needs to sustain life (20) test
• Alexandros Charalambides Why aren't we only using solar power? (19) test
• Karen J. Meech The story of 'Oumuamua, the first visitor from another star system (19) test

Alex Gendler: What is a gift economy? - test

• Stacey Kramer The best gift I ever survived (34) test
• Cal Newport Why you should quit social media (22) test
• Geoff Mulgan Post-crash, investing in a better world (21) test
• Louie Schwartzberg Nature. Beauty. Gratitude. (20) test
• Anne Scherer Why we're more honest with machines than people (20) test

Alex Gendler: Which voting system is the best? - test

• Amber McReynolds An election system that puts voters (not politicians) first (27) test
• David R. Liu Can we cure genetic diseases by rewriting DNA? (27) test
• Katherine M. Gehl US politics isn't broken. It's fixed (24) test
• Hyeonseo Lee My escape from North Korea (24) test
• Eric Liu There's no such thing as not voting (23) test

Alex Gendler: Why are airplanes slower than they used to be? - test

• Katerina Kaouri The sonic boom problem (27) test
• Cory Combs The future of flying is electrifying (24) test
• Judd A. Schorr Can you solve the airplane riddle? (24) test
• Anna Mracek Dietrich A plane you can drive (19) test
• Rodin Lyasoff How autonomous flying taxis could change the way you travel (18) test

Alex Gendler: Why do we cry? The three types of tears - test

• Kathy Mendias The mood-boosting power of crying (37) test
• YeYoon Kim What kids can teach adults about asking for help (12) test
• Matt Walker How sleep affects your emotions (10) test
• Eve Ensler Embrace your inner girl (10) test
• Natalie MacMaster Cape Breton fiddling in reel time (10) test

Alex Gendler: Why doesn't the Leaning Tower of Pisa fall over? - test

• Stefan Al Will there ever be a mile-high skyscraper? (31) test
• Iwan Baan Ingenious homes in unexpected places (19) test
• Alex Gendler How the world's tallest skyscraper was built (16) test
• Alex Gendler Epic Engineering Building the Brooklyn Bridge (16) test
• Alex Gendler How one design flaw almost toppled a skyscraper (14) test

Alex Gendler: Why elephants never forget - test

• Lucy King How bees can keep the peace between elephants and humans (47) test
• Chase LaDue and Bruce A. Schulte The incredible, bendable, twistable, expandable elephant trunk (35) test
• Carl Safina What are animals thinking and feeling? (29) test
• Diana Reiss, Peter Gabriel, Neil Gershenfeld and Vint Cerf The interspecies internet? An idea in progress (24) test
• Amy Milton Can we edit memories? (21) test

Alex Gendler: Why should you read "Crime and Punishment"? - test

• Kelli Swazey Life that doesn't end with death (21) test
• David R. Dow Lessons from death row inmates (17) test
• Alain de Botton A kinder, gentler philosophy of success (16) test
• Yang Lan The generation that's remaking China (16) test
• Geoff Mulgan Post-crash, investing in a better world (16) test

Alex Gendler: Why should you read "The Master and Margarita"? - test

• Andrew Peek How your personal narrative limits your future (15) test
• David R. Dow Lessons from death row inmates (14) test
• Francisco Díez-Buzo Why should you read "One Hundred Years of Solitude"? (14) test
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• Kelli Swazey Life that doesn't end with death (13) test

Alex Honnold: How I climbed a 3,000-foot vertical cliff -- without ropes - test

• Matthew Childs 9 life lessons from rock climbing (31) test
• Robert Full The sticky wonder of gecko feet (25) test
• Ryan Pfluger The therapeutic value of photography (24) test
• Ingrid Betancourt What six years in captivity taught me about fear and faith (24) test
• Amy Purdy Living beyond limits (24) test

Alex Kipman: A futuristic vision of the age of holograms - test

• Greg Anderson Why there's no such thing as objective reality (41) test
• Herman Narula The transformative power of video games (40) test
• Cleo Wade Want to change the world? Start by being brave enough to care (39) test
• Richard Dawkins Why the universe seems so strange (38) test
• Linda Liukas A delightful way to teach kids about computers (38) test

Alex Laskey: How behavioral science can lower your energy bill - test

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• DeAndrea Salvador How we can make energy more affordable for low-income families (52) test
• Rose M. Mutiso How to bring affordable, sustainable electricity to Africa (48) test
• Bill Gates Innovating to zero! (45) test
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Alex Rosenthal and George Zaidan: The case of the missing fractals - test

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• Corneille Ewango A hero of the Congo forest (17) test
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• Charles Limb Your brain on improv (17) test

Alex Rosenthal and Pall Thordarson: Which is better Soap or hand sanitizer? - test

• Lana Mazahreh 3 thoughtful ways to conserve water (40) test
• David Sedlak 4 ways we can avoid a catastrophic drought (40) test
• Rob Harmon How to keep rivers and streams flowing (39) test
• Deepika Kurup A young scientist's quest for clean water (38) test
• Anupam Mishra The ancient ingenuity of water harvesting (38) test

Alex Rosenthal: Can you solve the rogue submarine riddle? Difficulty level Master - test

• Ganesh Pai Can you solve the passcode riddle? (38) test
• Dennis Wildfogel How big is infinity? (36) test
• Daniel Finkel Can you solve the sea monster riddle? (34) test
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• Alex Gendler Can you solve the secret sauce riddle? (31) test

Alex Rosenthal: The Artists | Think Like A Coder, Ep 5 - test

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• Alex Rosenthal The Prison Break | Think Like A Coder, Ep 1 (31) test
• Alex Rosenthal The Resistance | Think Like A Coder, Ep 2 (29) test
• Alex Rosenthal The Chasm | Think Like A Coder, Ep 6 (28) test

Alex Rosenthal: The Chasm | Think Like A Coder, Ep 6 - test

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• Alex Rosenthal The Artists | Think Like A Coder, Ep 5 (28) test
• Alex Rosenthal The Factory | Think Like A Coder, Ep 9 (28) test
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• Alex Rosenthal The Gauntlet | Think Like A Coder, Ep 8 (24) test

Alex Rosenthal: The Factory | Think Like A Coder, Ep 9 - test

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• Alex Rosenthal The Resistance | Think Like A Coder, Ep 2 (33) test
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• Alex Rosenthal The Gauntlet | Think Like A Coder, Ep 8 (32) test

Alex Rosenthal: The Furnace Bots | Think Like A Coder, Ep 3 - test

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• Alex Rosenthal The Factory | Think Like A Coder, Ep 9 (23) test

Alex Rosenthal: The Gauntlet | Think Like A Coder, Ep 8 - test

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• Alex Rosenthal The Factory | Think Like A Coder, Ep 9 (32) test
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• Alex Rosenthal The Resistance | Think Like A Coder, Ep 2 (28) test
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Alex Rosenthal: The Prison Break | Think Like A Coder, Ep 1 - test

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• Alex Rosenthal The World Machine | Think Like A Coder, Ep 10 (39) test
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• Alex Rosenthal The Train Heist | Think Like A Coder, Ep 4 (34) test
• Alex Rosenthal The Chasm | Think Like A Coder, Ep 6 (33) test

Alex Rosenthal: The Resistance | Think Like A Coder, Ep 2 - test

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• Alex Rosenthal The Factory | Think Like A Coder, Ep 9 (33) test
• Alex Rosenthal The Artists | Think Like A Coder, Ep 5 (29) test
• Alex Rosenthal The World Machine | Think Like A Coder, Ep 10 (29) test
• Alex Rosenthal The Train Heist | Think Like A Coder, Ep 4 (29) test

Alex Rosenthal: The Train Heist | Think Like A Coder, Ep 4 - test

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• Alex Rosenthal The Factory | Think Like A Coder, Ep 9 (31) test
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• Alex Rosenthal The World Machine | Think Like A Coder, Ep 10 (26) test

Alex Rosenthal: The World Machine | Think Like A Coder, Ep 10 - test

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• Alex Rosenthal The Gauntlet | Think Like A Coder, Ep 8 (34) test
• Alex Rosenthal The Factory | Think Like A Coder, Ep 9 (33) test
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Alex Rosenthal: The joyful, perplexing world of puzzle hunts - test

• Scott Kim The art of puzzles (45) test
• David Kwong Two nerdy obsessions meet -- and it's magic (26) test
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• Larry Page Where's Google going next? (23) test

Alex Rosenthal: The world's largest organism - test

• Rachel Sussman The world's oldest living things (25) test
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• Lord Nicholas Stern The state of the climate — and what we might do about it (19) test
• Joao Pedro de Magalhaes Why do animals have such different lifespans? (18) test
• Kristine Tompkins Let's make the world wild again (18) test

Alex Rosenthal: When is a pandemic over? - test

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Alex Smith: An NFL quarterback on overcoming setbacks and self-doubt - test

• Shane Wickes Why I came out as a gay football coach (33) test
• Gonzalo Vilariño How Argentina's blind soccer team became champions (33) test
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• Serena Williams and Gayle King On tennis, love and motherhood (32) test
• Neil Pasricha The 3 A's of awesome (32) test

Alex Steffen: The route to a sustainable future - test

• Scott Dinsmore How to find work you love (51) test
• Mark Raymond Victims of the city (47) test
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• Theaster Gates How to revive a neighborhood with imagination, beauty and art (46) test

Alex Steffen: The shareable future of cities - test

• Kent Larson Brilliant designs to fit more people in every city (44) test
• Angel Hsu Cities are driving climate change. Here's how they can fix it (44) test
• Bill Gates Innovating to zero! (43) test
• Dean Kamen To invent is to give (42) test
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Alex Tabarrok: How ideas trump crises - test

• Hans Rosling Asia's rise -- how and when (44) test
• Hans Rosling Let my dataset change your mindset (43) test
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• Nandan Nilekani Ideas for India's future (40) test

Alex Wissner-Gross: A new equation for intelligence - test

• Nick Bostrom What happens when our computers get smarter than we are? (38) test
• Sam Harris Can we build AI without losing control over it? (36) test
• Grady Booch Don't fear superintelligent AI (30) test
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Alexa Meade: Your body is my canvas - test

• Alyssa Monks How loss helped one artist find beauty in imperfection (38) test
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• Alex Rosenthal The Artists | Think Like A Coder, Ep 5 (32) test
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Alexander Belcredi: How a long-forgotten virus could help us solve the antibiotics crisis - test

• Fatima AlZahra'a Alatraktchi To detect diseases earlier, let's speak bacteria's secret language (47) test
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• Tal Danino Hacking bacteria to fight cancer (34) test

Alexander Betts: Why Brexit happened -- and what to do next - test

• António Guterres Refugees have the right to be protected (36) test
• Ivan Krastev Can democracy exist without trust? (35) test
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• Simon Anholt Who would the rest of the world vote for in your country's election? (33) test

Alexander Leitner: Can time be wasted? - test

• Laura Vanderkam How to gain control of your free time (58) test
• Andrew Zimmerman Jones Does time exist? (55) test
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Alexander MacDonald: How centuries of sci-fi sparked spaceflight - test

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Alexander Tsiaras: Conception to birth -- visualized - test

• Anders Ynnerman Visualizing the medical data explosion (32) test
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Alexander Wagner: What really motivates people to be honest in business - test

• Scott Dinsmore How to find work you love (43) test
• Dan Ariely How to change your behavior for the better (41) test
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• Ricardo Semler How to run a company with (almost) no rules (39) test

Alexandra Auer: The intangible effects of walls - test

• Ronald Rael An architect's subversive reimagining of the US-Mexico border wall (48) test
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Alexandra Horowitz: How do dogs "see" with their noses? - test

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Alexandra Sacks: A new way to think about the transition to motherhood - test

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Alexandros Charalambides: Why aren't we only using solar power? - test

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• Rose M. Mutiso How to bring affordable, sustainable electricity to Africa (37) test

Alexis Charpentier: How record collectors find lost music and preserve our cultural heritage - test

• Mark Ronson How sampling transformed music (37) test
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Alexis Jones: Redefining manhood—one locker room talk at a time - test

• Hanna Rosin New data on the rise of women (49) test
• Esta Soler How we turned the tide on domestic violence (Hint the Polaroid helped) (44) test
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• Sheryl Sandberg Why we have too few women leaders (43) test
• Sheryl Sandberg So we leaned in ... now what? (42) test

Alexis Ohanian: How to make a splash in social media - test

• Danny Hillis The Internet could crash. We need a Plan B (27) test
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Ali Carr-Chellman: Gaming to re-engage boys in learning - test

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Ali Kashani: A friendly, autonomous robot that delivers your food - test

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Alice Bows-Larkin: Climate change is happening. Here's how we adapt - test

• Mary Robinson Why climate change is a threat to human rights (48) test
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• James Hansen Why I must speak out about climate change (42) test
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Alice Dreger: Is anatomy destiny? - test

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• Susannah Temko What it means to be intersex (38) test
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• John Biewen The lie that invented racism (34) test

Alice Goffman: How we're priming some kids for college — and others for prison - test

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Alice Pailhès: Secrets of the mind and free will -- revealed by magic tricks - test

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Alice Rawsthorn: Pirates, nurses and other rebel designers - test

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Alicia Eggert: Imaginative sculptures that explore how we perceive reality - test

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Alicia Garza, Patrisse Cullors and Opal Tometi: An interview with the founders of Black Lives Matter - test

• Vernā Myers How to overcome our biases? Walk boldly toward them (55) test
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Alisa Kazarina: Humanity at the intersection of science and archaeology - test

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Alisa Miller: How the news distorts our worldview - test

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Alison Gopnik: What do babies think? - test

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Alison Jackson: An unusual glimpse at celebrity - test

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Alison Killing: There’s a better way to die, and architecture can help - test

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• Michelle Knox Talk about your death while you're still healthy (42) test
• Peter Saul Let's talk about dying (42) test

Alison Killing: What happens when a city runs out of room for its dead - test

• Scott Dinsmore How to find work you love (45) test
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• Peter Saul Let's talk about dying (40) test

Alison Ledgerwood: A simple trick to improve positive thinking - test

• Scott Dinsmore How to find work you love (39) test
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Alix Generous: How I learned to communicate my inner life with Asperger's - test

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• Scott Dinsmore How to find work you love (37) test
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Allan Adams: The discovery that could rewrite physics - test

• Sean Carroll Distant time and the hint of a multiverse (39) test
• George Smoot The design of the universe (38) test
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• Stephen Hawking Questioning the universe (36) test
• Sajan Saini What is the universe expanding into? (36) test

Allan Adams: What the discovery of gravitational waves means - test

• Gabriela González How LIGO discovered gravitational waves -- and what might be next (56) test
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• Allan Adams The discovery that could rewrite physics (32) test

Allan Jones: A map of the brain - test

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Allan Savory: How to fight desertification and reverse climate change - test

• Asmeret Asefaw Berhe A climate change solution that's right under our feet (39) test
• Jane Goodall How humans and animals can live together (32) test
• Lord Nicholas Stern The state of the climate — and what we might do about it (32) test
• Al Gore The case for optimism on climate change (30) test
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Allison Hunt: How to get (a new) hip - test

• Stefan Larsson What doctors can learn from each other (19) test
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• Dan Finkel Can you solve the riddle and escape Hades? (15) test

Allison Ramsey and Mary Staicu: The accident that changed the world - test

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• Alexander Belcredi How a long-forgotten virus could help us solve the antibiotics crisis (28) test
• Bonnie Bassler How bacteria "talk" (27) test
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• Gerry Wright How can we solve the antibiotic resistance crisis? (26) test

Almudena Toral: Documentary films that explore trauma -- and make space for healing - test

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Alok Sharma: Why COP26 is our best chance for a greener future - test

• Luisa Neubauer Why you should be a climate activist (50) test
• Christiana Figueres and Chris Anderson How we can turn the tide on climate (49) test
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• Britt Wray How climate change affects your mental health (45) test
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Alvin Irby: How to inspire every child to be a lifelong reader - test

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Alwar Balasubramaniam: Art of substance and absence - test

• Shea Hembrey How I became 100 artists (34) test
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Alyson McGregor: Why medicine often has dangerous side effects for women - test

• Paula Johnson His and hers ... health care (61) test
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Alyssa Loorya: What I learned from digging under New York City's streets - test

• Amanda Burden How public spaces make cities work (40) test
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Alyssa Monks: How loss helped one artist find beauty in imperfection - test

• Alexa Meade Your body is my canvas (38) test
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Amanda Bennett: We need a heroic narrative for death - test

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Amanda Burden: How public spaces make cities work - test

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Amanda Gorman: Using your voice is a political choice - test

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Amanda Little: Climate change is becoming a problem you can taste - test

• Mark Bittman What's wrong with what we eat (49) test
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Amanda Mattes: Kabuki The people's dramatic art - test

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Amanda Palmer, Jherek Bischoff, Usman Riaz: "Space Oddity" - test

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Amanda Palmer: The art of asking - test

• Scott Dinsmore How to find work you love (54) test
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Amanda Schochet: How bumble bees inspired a network of tiny museums - test

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Amanda Williams: Why I turned Chicago's abandoned homes into art - test

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Amane Dannouni: How online marketplaces can help local economies, not hurt them - test

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Amar Inamdar: The thrilling potential for off-grid solar energy - test

• Rose M. Mutiso How to bring affordable, sustainable electricity to Africa (49) test
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Amber Case: We are all cyborgs now - test

• Brittney Cooper The racial politics of time (48) test
• Abha Dawesar Life in the "digital now" (45) test
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• Ricardo Semler How to run a company with (almost) no rules (43) test
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Amber Hikes: Want to truly succeed? Lift others up while you climb - test

• Jason Fried Why work doesn't happen at work (40) test
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• Scott Dinsmore How to find work you love (36) test

Amber M. Yates: How this disease changes the shape of your cells - test

• Melody Smith How bones make blood (45) test
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• Susan Solomon The promise of research with stem cells (39) test

Amber McReynolds: An election system that puts voters (not politicians) first - test

• Tiana Epps-Johnson What's needed to bring the US voting system into the 21st century (51) test
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Amber Stuver: Einstein's twin paradox explained - test

• Andrew Pontzen and Tom Whyntie The fundamentals of space-time Part 2 (38) test
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Ameenah Gurib-Fakim and Stephanie Busari: An interview with Mauritius's first female president - test

• Euvin Naidoo Why invest in Africa (37) test
• Fred Swaniker The leaders who ruined Africa, and the generation who can fix it (37) test
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• Neil Turok My wish Find the next Einstein in Africa (36) test
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Ameenah Gurib-Fakim: Humble plants that hide surprising secrets - test

• Joanne Chory How supercharged plants could slow climate change (49) test
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Ameera Harouda: Why I put myself in danger to tell the stories of Gaza - test

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Amel Karboul: The global learning crisis -- and what to do about it - test

• Andreas Schleicher Use data to build better schools (59) test
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America Ferrera: My identity is a superpower -- not an obstacle - test

• Dan Gilbert The psychology of your future self (37) test
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Ami Angelowicz: The terrors of sleep paralysis - test

• Matt Walker A walk through the stages of sleep (57) test
• Russell Foster Why do we sleep? (49) test
• Matt Walker Sleep is your superpower (47) test
• Masako Tamaki Can you be awake and asleep at the same time? (45) test
• Dan Gartenberg The brain benefits of deep sleep -- and how to get more of it (45) test

Ami Klin: A new way to diagnose autism - test

• Wendy Chung Autism — what we know (and what we don't know yet) (57) test
• Steve Silberman The forgotten history of autism (47) test
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Amir Nizar Zuabi: Walk with Little Amal, a theatrical journey celebrating the refugee experience - test

• David Miliband The refugee crisis is a test of our character (28) test
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Amishi Jha: How to tame your wandering mind - test

• Joseph Gordon-Levitt How craving attention makes you less creative (56) test
• Mehdi Ordikhani-Seyedlar What happens in your brain when you pay attention? (54) test
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Amit Kalra: 3 creative ways to fix fashion's waste problem - test

• Mindy Scheier How adaptive clothing empowers people with disabilities (30) test
• David Kelley Human-centered design (27) test
• Danit Peleg Forget shopping. Soon you'll download your new clothes (27) test
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Amit Sood: Building a museum of museums on the web - test

• Amit Sood Every piece of art you've ever wanted to see -- up close and searchable (32) test
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Amit Sood: Every piece of art you've ever wanted to see -- up close and searchable - test

• Titus Kaphar Can art amend history? (33) test
• Amit Sood Building a museum of museums on the web (32) test
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Amma Y. Ghartey-Tagoe Kootin: A historical musical that examines Black identity in the 1901 World's Fair - test

• Vernā Myers How to overcome our biases? Walk boldly toward them (30) test
• Alicia Garza, Patrisse Cullors and Opal Tometi An interview with the founders of Black Lives Matter (29) test
• Kimberlé Crenshaw The urgency of intersectionality (29) test
• Mwende "FreeQuency" Katwiwa Black life at the intersection of birth and death (25) test
• D-L Stewart Scenes from a Black trans life (25) test

Amma Y. Ghartey-Tagoe Kootin: A historical musical that examines black identity in the 1901 World's Fair - test

• Vernā Myers How to overcome our biases? Walk boldly toward them (30) test
• Alicia Garza, Patrisse Cullors and Opal Tometi An interview with the founders of Black Lives Matter (29) test
• Kimberlé Crenshaw The urgency of intersectionality (29) test
• Mwende "FreeQuency" Katwiwa Black life at the intersection of birth and death (25) test
• D-L Stewart Scenes from a Black trans life (25) test

Amory Lovins: A 40-year plan for energy - test

• Amory Lovins Winning the oil endgame (54) test
• Varun Sivaram How India could pull off the world's most ambitious energy transition (44) test
• Richard Sears Planning for the end of oil (42) test
• John Doerr and Hal Harvey How to decarbonize the grid and electrify everything (41) test
• T. Boone Pickens Let's transform energy -- with natural gas (41) test

Amory Lovins: Winning the oil endgame - test

• Lisa Margonelli The political chemistry of oil (57) test
• Amory Lovins A 40-year plan for energy (54) test
• Richard Sears Planning for the end of oil (45) test
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• T. Boone Pickens Let's transform energy -- with natural gas (42) test

Amos Winter: The cheap all-terrain wheelchair - test

• Rosario Perazolo Masjoan ¿Cuándo te importa mi silla de ruedas? (36) test
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• Nicholas Negroponte One Laptop per Child, two years on (27) test

Amy Adele Hasinoff: How to practice safe sexting - test

• Andy Yen Think your email's private? Think again (35) test
• Kade Crockford What you need to know about face surveillance (30) test
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• Alessandro Acquisti What will a future without secrets look like? (27) test

Amy Adkins: 3 tips to boost your confidence - test

• Brittany Packnett How to build your confidence -- and spark it in others (33) test
• Carol Dweck The power of believing that you can improve (21) test
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Amy Adkins: The myth of Icarus and Daedalus - test

• Eve Ensler The profound power of an authentic apology (11) test
• Justin Baldoni Why I'm done trying to be "man enough" (11) test
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Amy Adkins: Who am I? A philosophical inquiry - test

• Rose George Inside the secret shipping industry (21) test
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Amy Adkins: Why do we dream? - test

• Dan Pallotta The dream we haven't dared to dream (34) test
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• Russell Foster Why do we sleep? (25) test

Amy C. Edmondson: How to lead in a crisis - test

• Thomas Goetz It's time to redesign medical data (34) test
• Halla Tómasdóttir and Bryn Freedman The crisis of leadership -- and a new way forward (30) test
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Amy Cuddy: Your body language may shape who you are - test

• Jeremy Heimans What new power looks like (47) test
• Eric Liu How to understand power (47) test
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• Wael Ghonim Inside the Egyptian revolution (39) test

Amy Edmondson: How to turn a group of strangers into a team - test

• David Lee Why jobs of the future won't feel like work (37) test
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Amy Green: A video game to cope with grief - test

• David Perry Are games better than life? (43) test
• Brenda Romero Gaming for understanding (37) test
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Amy Herman: A lesson on looking - test

• Laolu Senbanjo "The Sacred Art of the Ori" (40) test
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• Daniel Lismore My life as a work of art (33) test
• Kara Logan Berlin 3 ways to be a more effective fundraiser (33) test
• Shea Hembrey How I became 100 artists (33) test

Amy Hrdina and Jesse Kroll: What's in the air you breathe? - test

• Emily Parsons-Lord Art made of the air we breathe (38) test
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• Arunabha Ghosh 5 steps for clean air in India (27) test

Amy Lockwood: Selling condoms in the Congo - test

• Scott Dinsmore How to find work you love (40) test
• Mechai Viravaidya How Mr. Condom made Thailand a better place for life and love (37) test
• Ricardo Semler How to run a company with (almost) no rules (36) test
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Amy Milton: Can we edit memories? - test

• Steve Ramirez and Xu Liu A mouse. A laser beam. A manipulated memory. (53) test
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• Elizabeth Loftus How reliable is your memory? (47) test

Amy Nicole Baker: 7 common questions about workplace romance - test

• Taken for Granted Brené Brown on What Vulnerability Isn't (40) test
• Kara Logan Berlin 3 ways to be a more effective fundraiser (39) test
• Scott Dinsmore How to find work you love (38) test
• Dan Ariely What makes us feel good about our work? (38) test
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Amy Purdy: Living beyond limits - test

• Janine Shepherd A broken body isn't a broken person (39) test
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Amy Smith: Simple designs to save a life - test

• Jacqueline Novogratz Invest in Africa's own solutions (32) test
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Amy Tan: Where does creativity hide? - test

• Design Matters with Debbie Millman Cheryl Strayed (39) test
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Anab Jain: Why we need to imagine different futures - test

• Charlie Jane Anders Go ahead, dream about the future (55) test
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Anand Agarawala: Rethink the desktop with BumpTop - test

• John Maeda My journey in design (47) test
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Anand Giridharadas: A letter to all who have lost in this era - test

• Fields Wicker-Miurin Learning from leadership's missing manual (35) test
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Anand Giridharadas: A tale of two Americas. And the mini-mart where they collided - test

• Jose Antonio Vargas 3 questions to ask yourself about US citizenship (33) test
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• Bono My wish Three actions for Africa (29) test

Anand Varma: The first 21 days of a bee's life - test

• Marla Spivak Why bees are disappearing (61) test
• Noah Wilson-Rich Every city needs healthy honey bees (54) test
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• Emma Bryce The case of the vanishing honeybees (40) test

Anant Agarwal: Why massive open online courses (still) matter - test

• Daphne Koller What we're learning from online education (50) test
• Tyler Dewitt Online learning could change academia -- for good (40) test
• Peter Norvig The 100,000-student classroom (40) test
• Shai Reshef An ultra-low-cost college degree (38) test
• Michael Bodekaer This virtual lab will revolutionize science class (37) test

Ananya Grover: A campaign for period positivity - test

• Aditi Gupta A taboo-free way to talk about periods (38) test
• Kakenya Ntaiya A girl who demanded school (31) test
• Safeena Husain A bold plan to empower 1.6 million out-of-school girls in India (29) test
• Shad Begum How women in Pakistan are creating political change (29) test
• Ali Carr-Chellman Gaming to re-engage boys in learning (28) test

Anas Aremeyaw Anas: How I named, shamed and jailed - test

• Ricardo Semler How to run a company with (almost) no rules (27) test
• Giles Duley When a reporter becomes the story (25) test
• Peter Gabriel Fight injustice with raw video (24) test
• Serena Williams and Gayle King On tennis, love and motherhood (24) test
• Jeff Skoll My journey into movies that matter (24) test

Anastasia Penright: 5 steps to remove yourself from drama at work - test

• Scott Dinsmore How to find work you love (33) test
• Jason Fried Why work doesn't happen at work (32) test
• Roy Bahat and Bryn Freedman How do we find dignity at work? (30) test
• Kara Logan Berlin 3 ways to be a more effective fundraiser (30) test
• Taken for Granted Brené Brown on What Vulnerability Isn't (28) test

Anastasia Taylor-Lind: Fighters and mourners of the Ukrainian revolution - test

• Laura Bates Everyday sexism (30) test
• Hanna Rosin New data on the rise of women (29) test
• Gayle Tzemach Lemmon Meet the women fighting on the front lines of an American war (28) test
• Megan Kamerick Women should represent women in media (28) test
• Sheryl Sandberg So we leaned in ... now what? (28) test

Anders Fjellberg: Two nameless bodies washed up on the beach. Here are their stories - test

• Melissa Fleming Let's help refugees thrive, not just survive (34) test
• David Miliband The refugee crisis is a test of our character (31) test
• Ricardo Semler How to run a company with (almost) no rules (31) test
• Scott Dinsmore How to find work you love (30) test
• Jon Lowenstein Family, hope and resilience on the migrant trail (30) test

Anders Ynnerman: Visualizing the medical data explosion - test

• Tim Berners-Lee The next web (52) test
• Giorgia Lupi How we can find ourselves in data (49) test
• Kenneth Cukier Big data is better data (48) test
• Peter van Manen Better baby care -- thanks to Formula 1 (44) test
• Talithia Williams Own your body's data (43) test

Andras Forgacs: Leather and meat without killing animals - test

• Jacy Reese Anthis Why we should end animal agriculture (32) test
• Anthony Atala Printing a human kidney (25) test
• Nina Tandon Caring for engineered tissue (24) test
• Nabiha Saklayen Could you recover from illness ... using your own stem cells? (24) test
• Suzanne Lee Why "biofabrication" is the next industrial revolution (23) test

Andrea Berchowitz: The link between menopause and gender inequity at work - test

• Sheryl Sandberg Why we have too few women leaders (40) test
• Shad Begum How women in Pakistan are creating political change (40) test
• Paula Johnson His and hers ... health care (39) test
• Cecile Richards The political progress women have made -- and what's next (38) test
• Lisa Mosconi How menopause affects the brain (37) test

Andrea Ghez: The hunt for a supermassive black hole - test

• Fabio Pacucci Could the Earth be swallowed by a black hole? (67) test
• Sheperd Doeleman Inside the black hole image that made history (62) test
• Fabio Pacucci Can a black hole be destroyed? (60) test
• Katie Bouman How to take a picture of a black hole (57) test
• Janna Levin The sound the universe makes (55) test

Andrea Gibson: "The Nutritionist" - test

• Pico Iyer The art of stillness (25) test
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• Jackie Tabick The balancing act of compassion (24) test
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• Louie Schwartzberg Nature. Beauty. Gratitude. (23) test

Andrea M. Henle: How CRISPR lets you edit DNA - test

• Jennifer Doudna How CRISPR lets us edit our DNA (59) test
• Ellen Jorgensen What you need to know about CRISPR (48) test
• Dan Gibson How to build synthetic DNA and send it across the internet (39) test
• Janet Iwasa The wonders of the molecular world, animated (39) test
• Sebastian Kraves The era of personal DNA testing is here (39) test

Andreas Ekström: The moral bias behind your search results - test

• Sergey Brin + Larry Page The genesis of Google (39) test
• Eli Pariser Beware online "filter bubbles" (28) test
• Steven Johnson The Web as a city (27) test
• Randall Munroe Comics that ask "what if?" (26) test
• Roger McNamee 6 ways to save the internet (26) test

Andreas Raptopoulos: No roads? There's a drone for that - test

• Parag Khanna How megacities are changing the map of the world (38) test
• Dean Kamen To invent is to give (34) test
• Hans Rosling Global population growth, box by box (32) test
• Kent Larson Brilliant designs to fit more people in every city (31) test
• Hector Ruiz The thinking behind 50x15 (31) test

Andreas Schleicher: Use data to build better schools - test

• Amel Karboul The global learning crisis -- and what to do about it (59) test
• Sir Ken Robinson How to escape education's death valley (50) test
• Bill Gates Mosquitos, malaria and education (44) test
• Charles Leadbeater Education innovation in the slums (44) test
• The TED Interview Sir Ken Robinson (still) wants an education revolution (44) test

Andreea S. Calude: Does grammar matter? - test

• Archie Crowley Language around gender and identity evolves (and always has) (43) test
• David Peterson Why language is humanity's greatest invention (41) test
• Poet Ali The language of being human (39) test
• Kalika Bali The giant leaps in language technology -- and who's left behind (37) test
• Lera Boroditsky How language shapes the way we think (37) test

Andres Lozano: Parkinson's, depression and the switch that might turn them off - test

• Mia Nacamulli How the food you eat affects your brain (50) test
• Ed Boyden A new way to study the brain's invisible secrets (50) test
• Nancy Kanwisher A neural portrait of the human mind (49) test
• Jeff Iliff One more reason to get a good night's sleep (47) test
• Miguel Nicolelis A monkey that controls a robot with its thoughts. No, really. (47) test

Andrew Bastawrous: A new way to fund health care for the most vulnerable - test

• Scott Dinsmore How to find work you love (42) test
• Mia Birdsong The story we tell about poverty isn't true (40) test
• Ricardo Semler How to run a company with (almost) no rules (39) test
• Marvin Minsky Health and the human mind (39) test
• Marian Wright Edelman Reflections from a lifetime fighting to end child poverty (39) test

Andrew Bastawrous: Get your next eye exam on a smartphone - test

• Andrew Bastawrous A new way to fund health care for the most vulnerable (38) test
• Thulasiraj Ravilla How low-cost eye care can be world-class (35) test
• Scott Dinsmore How to find work you love (35) test
• Jeanne Pinder What if all US health care costs were transparent? (34) test
• Seth Godin The tribes we lead (34) test

Andrew Bird: A one-man orchestra of the imagination - test

• Tom Thum The orchestra in my mouth (25) test
• LeeAnn Renninger The secret to giving great feedback (25) test
• Hrishikesh Hirway What you discover when you really listen (22) test
• Vusi Mahlasela "Thula Mama" (21) test
• David Eagleman Can we create new senses for humans? (19) test

Andrew Blum: Discover the physical side of the internet - test

• Danny Hillis The Internet could crash. We need a Plan B (39) test
• Kayvon Tehranian How NFTs are building the internet of the future (33) test
• Tamas Kocsis The case for a decentralized internet (31) test
• Jonathan Zittrain The Web as random acts of kindness (30) test
• Ethan Zuckerman Listening to global voices (29) test

Andrew Dent: To eliminate waste, we need to rediscover thrift - test

• Arthur Potts Dawson A vision for sustainable restaurants (31) test
• Eben Bayer Are mushrooms the new plastic? (30) test
• Suzanne Lee Why "biofabrication" is the next industrial revolution (29) test
• Michael Pawlyn Using nature's genius in architecture (25) test
• Mike Biddle We can recycle plastic (25) test

Andrew Fitzgerald: Adventures in Twitter fiction - test

• Evan Williams The voices of Twitter users (37) test
• Tyler Cowen Be suspicious of simple stories (36) test
• Shonda Rhimes and Cyndi Stivers The future of storytelling (36) test
• Lori Gottlieb How changing your story can change your life (34) test
• Elif Shafak The politics of fiction (34) test

Andrew Forrest: A radical plan to end plastic waste - test

• Dianna Cohen Tough truths about plastic pollution (57) test
• David Katz The surprising solution to ocean plastic (52) test
• Sarah Dudas Microplastics are everywhere -- but we can do something about them (48) test
• Haaziq Kazi A 13-year-old's plan for removing plastic from the oceans (48) test
• Mani Vajipey How India's local recyclers could solve plastic pollution (47) test

Andrew Marantz: Inside the bizarre world of internet trolls and propagandists - test

• Wael Ghonim Let's design social media that drives real change (42) test
• Jonny Sun You are not alone in your loneliness (41) test
• John Biewen The lie that invented racism (41) test
• Larry Page Where's Google going next? (41) test
• Naomi Shimada Tips for reclaiming your peace of mind online (41) test

Andrew McAfee: Are droids taking our jobs? - test

• David Lee Why jobs of the future won't feel like work (47) test
• Andrew McAfee What will future jobs look like? (45) test
• Linus Torvalds The mind behind Linux (43) test
• Douglas Rushkoff How to be "Team Human" in the digital future (43) test
• Scott Dinsmore How to find work you love (43) test

Andrew McAfee: What will future jobs look like? - test

• Andrew McAfee Are droids taking our jobs? (45) test
• Ricardo Semler How to run a company with (almost) no rules (40) test
• Martin Ford How we'll earn money in a future without jobs (38) test
• David Lee Why jobs of the future won't feel like work (38) test
• Geoff Mulgan Post-crash, investing in a better world (37) test

Andrew McDonald: The rise and fall of the Kingdom of Man - test

• Yann Arthus-Bertrand A wide-angle view of fragile Earth (19) test
• John Lewis and Bryan Stevenson The fight for civil rights and freedom (18) test
• Ian Barnes What archaeology and DNA can teach us about prehistoric migration (17) test
• Joseph Lekuton A parable for Kenya (17) test
• Billy Graham On technology and faith (16) test

Andrew Mwenda: Aid for Africa? No thanks. - test

• Ngozi Okonjo-Iweala Aid versus trade (47) test
• Ngozi Okonjo-Iweala How Africa can keep rising (42) test
• George Ayittey Africa's cheetahs versus hippos (41) test
• Sangu Delle In praise of macro -- yes, macro -- finance in Africa (40) test
• Ngozi Okonjo-Iweala Want to help Africa? Do business here (40) test

Andrew Peek: How your personal narrative limits your future - test

• Nancy Duarte The secret structure of great talks (51) test
• Lori Gottlieb How changing your story can change your life (46) test
• Tyler Cowen Be suspicious of simple stories (42) test
• Andrew Stanton The clues to a great story (40) test
• Alexander MacDonald How centuries of sci-fi sparked spaceflight (40) test

Andrew Pelling: Could we treat spinal cord injuries with asparagus? - test

• Andrew Pelling This scientist makes ears out of apples (31) test
• Grégoire Courtine The paralyzed rat that walked (29) test
• Anthony Atala Growing new organs (25) test
• Joanne Chory How supercharged plants could slow climate change (25) test
• Auke Ijspeert A robot that runs and swims like a salamander (24) test

Andrew Pelling: This scientist makes ears out of apples - test

• Nina Tandon Caring for engineered tissue (35) test
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• Andrew Pelling Could we treat spinal cord injuries with asparagus? (31) test
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Andrew Pontzen and Tom Whyntie: The fundamentals of space-time Part 2 - test

• Miguel Alcubierre ¿Cómo podríamos viajar más rápido que la velocidad de la luz? (45) test
• Andrew Zimmerman Jones Does time exist? (44) test
• Antony Gormley Sculpted space, within and without (42) test
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• Ramesh Raskar Imaging at a trillion frames per second (37) test

Andrew Solomon: Depression, the secret we share - test

• Johann Hari This could be why you're depressed or anxious (63) test
• Bill Bernat How to connect with depressed friends (60) test
• Helen M. Farrell What is depression? (51) test
• Scott Dinsmore How to find work you love (51) test
• Sherwin Nuland How electroshock therapy changed me (46) test

Andrew Solomon: How the worst moments in our lives make us who we are - test

• Andrew Solomon Love, no matter what (35) test
• Emily Esfahani Smith There's more to life than being happy (35) test
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• iO Tillett Wright Fifty shades of gay (30) test
• Rabbi Lord Jonathan Sacks How we can face the future without fear, together (30) test

Andrew Solomon: Love, no matter what - test

• Yuko Munakata The science behind how parents affect child development (49) test
• Marian Wright Edelman Reflections from a lifetime fighting to end child poverty (43) test
• Helen Pearson Lessons from the longest study on human development (42) test
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• Georgette Mulheir The tragedy of orphanages (42) test

Andrew Stanton: The clues to a great story - test

• Tyler Cowen Be suspicious of simple stories (47) test
• Lori Gottlieb How changing your story can change your life (43) test
• Andrew Peek How your personal narrative limits your future (40) test
• Shekhar Kapur We are the stories we tell ourselves (39) test
• George Monbiot The new political story that could change everything (37) test

Andrew Vanden Heuvel: The moon illusion - test

• Sarah T. Stewart Where did the Moon come from? A new theory (36) test
• Xavier De Kestelier Adventures of an interplanetary architect (32) test
• Jorge Mañes Rubio What should humans take to space (and leave behind)? (25) test
• Alexander MacDonald How centuries of sci-fi sparked spaceflight (23) test
• Jason Pontin Can technology solve our big problems? (20) test

Andrew Youn: 3 reasons why we can win the fight against poverty - test

• Rutger Bregman Poverty isn't a lack of character; it's a lack of cash (38) test
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• Eric Sannerud Without farmers, you'd be hungry, naked and sober (34) test
• Andrew Youn The seeds of change helping African farmers grow out of poverty (33) test

Andrew Youn: The seeds of change helping African farmers grow out of poverty - test

• Eric Sannerud Without farmers, you'd be hungry, naked and sober (34) test
• Andrew Youn 3 reasons why we can win the fight against poverty (33) test
• Mohammad Modarres Why you should shop at your local farmers market (30) test
• Rébecca Kleinberger Why you don't like the sound of your own voice (28) test
• Laura Boykin How we're using DNA tech to help farmers fight crop diseases (26) test

Andrew Zimmerman Jones: Does time exist? - test

• Alexander Leitner Can time be wasted? (55) test
• Laura Vanderkam How to gain control of your free time (53) test
• Brittney Cooper The racial politics of time (51) test
• Abha Dawesar Life in the "digital now" (50) test
• Andri Snær Magnason On time and water (47) test

Andrey Vyshedskiy: The neuroscience of imagination - test

• Suzana Herculano-Houzel What is so special about the human brain? (33) test
• Kay M. Tye What investigating neural pathways can reveal about mental health (31) test
• Henry Markram A brain in a supercomputer (30) test
• Sebastian Seung I am my connectome (29) test
• Sam Rodriques What we'll learn about the brain in the next century (29) test

Andri Snær Magnason: On time and water - test

• Brittney Cooper The racial politics of time (49) test
• Laura Vanderkam How to gain control of your free time (48) test
• Andrew Zimmerman Jones Does time exist? (47) test
• Alexander Leitner Can time be wasted? (44) test
• Abha Dawesar Life in the "digital now" (42) test

Andy Hobsbawm: Do the green thing - test

• Larry Smith Why you will fail to have a great career (28) test
• Sir Ken Robinson Bring on the learning revolution! (22) test
• Ethan Hawke Give yourself permission to be creative (21) test
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• Neil MacGregor 2600 years of history in one object (21) test

Andy Puddicombe: All it takes is 10 mindful minutes - test

• Matthieu Ricard The habits of happiness (43) test
• Matt Killingsworth Want to be happier? Stay in the moment (43) test
• Abha Dawesar Life in the "digital now" (39) test
• Laura Vanderkam How to gain control of your free time (36) test
• Alexander Leitner Can time be wasted? (35) test

Andy Yen: Think your email's private? Think again - test

• Amy Adele Hasinoff How to practice safe sexting (35) test
• Larry Page Where's Google going next? (33) test
• Glenn Greenwald Why privacy matters (33) test
• Gary Kovacs Tracking our online trackers (32) test
• Anna Piperal What a digital government looks like (32) test

Anees Bahji: Can steroids save your life? - test

• Anees Bahji How do steroids affect your muscles— and the rest of your body? (34) test
• Jen Gunter Can you actually boost your immune system? Here's the truth (32) test
• Emma Bryce How does the immune system work? (30) test
• Kaitlyn Sadtler How we could teach our bodies to heal faster (30) test
• Marco A. Sotomayor The surprising reason you feel awful when you're sick (27) test

Anees Bahji: How do steroids affect your muscles— and the rest of your body? - test

• Anees Bahji Can steroids save your life? (34) test
• Jeffrey Siegel What makes muscles grow? (20) test
• Céline Valéry The dangers of mixing drugs (19) test
• Anees Bahji Is marijuana bad for your brain? (19) test
• Don Levy A cinematic journey through visual effects (15) test

Anees Bahji: Is marijuana bad for your brain? - test

• Khadijah Tribble How marijuana reform could repair, reclaim and restore communities (32) test
• David Casarett A doctor's case for medical marijuana (32) test
• Anees Bahji What is schizophrenia? (24) test
• Ethan Nadelmann Why we need to end the War on Drugs (23) test
• Tony Wyss-Coray How young blood might help reverse aging. Yes, really (21) test

Anees Bahji: What is schizophrenia? - test

• Thomas Insel Toward a new understanding of mental illness (27) test
• Elyn Saks A tale of mental illness -- from the inside (26) test
• Elizabeth Cox What causes hallucinations? (24) test
• Anees Bahji Is marijuana bad for your brain? (24) test
• Read Montague What we're learning from 5,000 brains (23) test

Angel Chang: The wildly complex anatomy of a sneaker - test

• Olivier Scalabre The next manufacturing revolution is here (24) test
• Josh Luber Why sneakers are a great investment (23) test
• Eben Bayer Are mushrooms the new plastic? (23) test
• John Doerr and Hal Harvey How to decarbonize the grid and electrify everything (23) test
• Jennifer Wilcox A new way to remove CO2 from the atmosphere (22) test

Angel Hsu: Cities are driving climate change. Here's how they can fix it - test

• Robert Muggah The biggest risks facing cities -- and some solutions (56) test
• António Guterres The race to a zero-emission world starts now (46) test
• Alex Steffen The shareable future of cities (44) test
• Lord Nicholas Stern The state of the climate — and what we might do about it (43) test
• Benjamin Barber Why mayors should rule the world (42) test

Angel Hsu: How China is (and isn't) fighting pollution and climate change - test

• Romain Lacombe A personal air-quality tracker that lets you know what you're breathing (46) test
• Arunabha Ghosh 5 steps for clean air in India (42) test
• Joe Lassiter We need nuclear power to solve climate change (41) test
• Kevin Rudd Are China and the US doomed to conflict? (40) test
• Tapiwa Chiwewe You don't have to be an expert to solve big problems (39) test

Angela Francis: How to get everyone to care about a green economy - test

• Scott Dinsmore How to find work you love (53) test
• John Marshall 3 strategies for effectively talking about climate change (51) test
• Geoff Mulgan Post-crash, investing in a better world (49) test
• Bill Gates How we must respond to the coronavirus pandemic (47) test
• Seth Godin The tribes we lead (46) test

Angela Koine Flynn: The science of skin color - test

• Jen Gunter 5 skin health myths to stop believing now (66) test
• Nina Jablonski Skin color is an illusion (48) test
• Chika Okoro How colorism shapes our standards of beauty (39) test
• Richard Weller Could the sun be good for your heart? (35) test
• Sarthak Sinha How a wound heals itself (35) test

Angela Patton: A father-daughter dance ... in prison - test

• Monique W. Morris Why black girls are targeted for punishment at school -- and how to change that (51) test
• Eve Ensler Embrace your inner girl (45) test
• Aditi Gupta A taboo-free way to talk about periods (43) test
• Leymah Gbowee Unlock the intelligence, passion, greatness of girls (40) test
• Safeena Husain A bold plan to empower 1.6 million out-of-school girls in India (40) test

Angela Wang: How China is changing the future of shopping - test

• Nimisha Jain The joy of shopping -- and how to recapture it online (39) test
• Sebastian Guo Why we need to pay attention to Chinese millennials (24) test
• Malte Spitz Your phone company is watching (24) test
• Kevin Rudd Are China and the US doomed to conflict? (24) test
• Wendy De La Rosa 3 sneaky tactics that websites use to make you spend (24) test

Angelicque White: What ocean microbes reveal about the changing climate - test

• Triona McGrath How pollution is changing the ocean's chemistry (48) test
• Rob Dunbar Discovering ancient climates in oceans and ice (45) test
• Sylvia Earle My wish Protect our oceans (44) test
• Paul Snelgrove A census of the ocean (43) test
• John Delaney Wiring an interactive ocean (42) test

Angelo Vermeulen: How to go to space, without having to go to space - test

• George Dyson The story of Project Orion (36) test
• JR My wish Use art to turn the world inside out (33) test
• Britta Riley A garden in my apartment (32) test
• Massimo Banzi How Arduino is open-sourcing imagination (32) test
• Bill Stone Inside the world's deepest caves (31) test

Angie Murimirwa: How repaying loans with social service transforms communities - test

• Kakenya Ntaiya A girl who demanded school (42) test
• Mary Maker Why I fight for the education of refugee girls (like me) (41) test
• Kakenya Ntaiya Empower a girl, transform a community (41) test
• Linda Cliatt-Wayman How to fix a broken school? Lead fearlessly, love hard (40) test
• Safeena Husain A bold plan to empower 1.6 million out-of-school girls in India (40) test

Angélica Dass: The beauty of human skin in every color - test

• John Biewen The lie that invented racism (36) test
• Scott Dinsmore How to find work you love (34) test
• Titus Kaphar Can beauty open our hearts to difficult conversations? (33) test
• Ricardo Semler How to run a company with (almost) no rules (31) test
• Deeyah Khan What we don't know about Europe's Muslim kids (30) test

Angélique Parisot-Potter: How to be an upstander instead of a bystander - test

• Leah Chase and Pat Mitchell An interview with the Queen of Creole Cuisine (20) test
• Luvvie Ajayi Jones Get comfortable with being uncomfortable (20) test
• Luvvie Ajayi Get comfortable with being uncomfortable (20) test
• Serena Williams and Gayle King On tennis, love and motherhood (20) test
• Simon Sinek How to discover your "why" in difficult times (19) test

Ani Liu: Smelfies, and other experiments in synthetic biology - test

• Christina Agapakis What happens when biology becomes technology? (32) test
• Paola Antonelli Design and the Elastic Mind (27) test
• Ameenah Gurib-Fakim Humble plants that hide surprising secrets (27) test
• Joanne Chory How supercharged plants could slow climate change (27) test
• Paola Antonelli Treat design as art (27) test

Anika Hazra: A simple way to tell insects apart - test

• Renata di Tullio Por qué deberíamos comer más bichos (22) test
• Marcel Dicke Why not eat insects? (21) test
• Marlene Zuk What we learn from insects' sex lives (18) test
• Jonathan Drori The beautiful tricks of flowers (18) test
• Anne Gaskett The sexual deception of orchids (16) test

Anika Paulson: How I found myself through music - test

• Joey Alexander An 11-year-old prodigy performs old-school jazz (65) test
• Michael Tilson Thomas Music and emotion through time (64) test
• David Byrne How architecture helped music evolve (57) test
• Paolo Bortolameolli ¿Por qué nos emociona la música? (53) test
• Tod Machover + Dan Ellsey Inventing instruments that unlock new music (53) test

Anil Ananthaswamy: What it takes to do extreme astrophysics - test

• Risa Wechsler The search for dark matter -- and what we've found so far (39) test
• Patricia Burchat Shedding light on dark matter (35) test
• James Gillies Dark matter The matter we can't see (34) test
• Renée Hlozek The death of the universe (34) test
• Wendy Freedman This telescope might show us the beginning of the universe (30) test

Anil Gupta: India's hidden hotbeds of invention - test

• Scott Dinsmore How to find work you love (54) test
• Van Jones The economic injustice of plastic (47) test
• Seth Godin The tribes we lead (46) test
• Wael Ghonim Inside the Egyptian revolution (45) test
• Linus Torvalds The mind behind Linux (45) test

Anil Seth: Your brain hallucinates your conscious reality - test

• Lisa Feldman Barrett You aren't at the mercy of your emotions -- your brain creates them (44) test
• David Eagleman Can we create new senses for humans? (41) test
• Antonio Damasio The quest to understand consciousness (39) test
• Miguel Nicolelis A monkey that controls a robot with its thoughts. No, really. (37) test
• David Chalmers How do you explain consciousness? (36) test

Anindya Kundu: The boost students need to overcome obstacles - test

• Freeman Hrabowski 4 pillars of college success in science (38) test
• Daphne Koller What we're learning from online education (37) test
• Anindya Kundu The "opportunity gap" in US public education -- and how to close it (36) test
• Sydney Chaffee How teachers can help kids find their political voices (35) test
• Danielle R. Moss How we can help the "forgotten middle" reach their full potential (32) test

Anindya Kundu: The "opportunity gap" in US public education -- and how to close it - test

• Sydney Chaffee How teachers can help kids find their political voices (43) test
• Nora Flanagan What COVID-19 revealed about US schools -- and 4 ways to rethink education (41) test
• Olympia Della Flora Creative ways to get kids to thrive in school (41) test
• Sydney Jensen How can we support the emotional well-being of teachers? (38) test
• Seema Bansal How to fix a broken education system ... without any more money (37) test

Anirudh Sharma: Ink made of air pollution - test

• Tapiwa Chiwewe You don't have to be an expert to solve big problems (42) test
• María Neira This is your brain on air pollution (36) test
• Romain Lacombe A personal air-quality tracker that lets you know what you're breathing (35) test
• Arunabha Ghosh 5 steps for clean air in India (31) test
• Angel Hsu How China is (and isn't) fighting pollution and climate change (28) test

Anita Collins: How playing an instrument benefits your brain - test

• Anita Collins The benefits of music education (61) test
• Joey Alexander An 11-year-old prodigy performs old-school jazz (50) test
• Michael Tilson Thomas Music and emotion through time (47) test
• Robert Gupta Between music and medicine (45) test
• Frederick Streeter Barrett The neuroscience of psychedelic drugs, music and nostalgia (45) test

Anita Collins: The benefits of music education - test

• Anita Collins How playing an instrument benefits your brain (61) test
• Joey Alexander An 11-year-old prodigy performs old-school jazz (57) test
• Michael Tilson Thomas Music and emotion through time (55) test
• Indre Viskontas How music makes me a better neuroscientist (48) test
• Robert Gupta Between music and medicine (48) test

Anjali Kumar: My failed mission to find God -- and what I found instead - test

• Tom Honey Why would God create a tsunami? (42) test
• Julia Sweeney Letting go of God (35) test
• Kate Bowler "Everything happens for a reason" -- and other lies I've loved (32) test
• Rick Warren A life of purpose (31) test
• Billy Graham On technology and faith (31) test

Anjali Tripathi: Why Earth may someday look like Mars - test

• Sara Seager The search for planets beyond our solar system (56) test
• Dave Brain What a planet needs to sustain life (52) test
• Dimitar Sasselov How we found hundreds of potential Earth-like planets (50) test
• Lucianne Walkowicz Let's not use Mars as a backup planet (48) test
• Lucianne Walkowicz Finding planets around other stars (45) test

Anjan Chatterjee: How your brain decides what is beautiful - test

• Richard Seymour How beauty feels (38) test
• Denis Dutton A Darwinian theory of beauty (37) test
• Winnie Harlow How I define beauty (35) test
• Sasha Sarago The (de)colonizing of beauty (31) test
• Renzo Piano The genius behind some of the world's most famous buildings (28) test

Anjan Sundaram: Why I risked my life to expose a government massacre - test

• Jamila Raqib The secret to effective nonviolent resistance (37) test
• Scott Dinsmore How to find work you love (37) test
• Wadah Khanfar A historic moment in the Arab world (37) test
• Wael Ghonim Inside the Egyptian revolution (36) test
• Jennifer Pahlka Coding a better government (35) test

Ann Cooper: What's wrong with school lunches - test

• Jamie Oliver Teach every child about food (55) test
• Sam Kass Want kids to learn well? Feed them well (54) test
• Geoffrey Canada Our failing schools. Enough is enough! (51) test
• Ellen Gustafson Obesity + hunger = 1 global food issue (48) test
• Josette Sheeran Ending hunger now (45) test

Ann Curry: How to restore trust in Journalism - test

• Christiane Amanpour How to seek truth in the era of fake news (37) test
• Lara Setrakian 3 ways to fix a broken news industry (35) test
• Michael Patrick Lynch How to see past your own perspective and find truth (32) test
• Damon Brown How to choose your news (32) test
• Eve Pearlman How to lead a conversation between people who disagree (30) test

Ann Morgan: My year reading a book from every country in the world - test

• Ron McCallum How technology allowed me to read (51) test
• Chimamanda Ngozi Adichie The danger of a single story (40) test
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• Chiki Sarkar How India's smartphone revolution is creating a new generation of readers and writers (38) test
• Michelle Kuo The healing power of reading (36) test

AnnMarie Thomas: Hands-on science with squishy circuits - test

• Stuart Brown Play is more than just fun (39) test
• Steve Keil A manifesto for play, for Bulgaria and beyond (38) test
• Tim Brown Tales of creativity and play (31) test
• Yana Buhrer Tavanier How to recover from activism burnout (28) test
• Natalie MacMaster Fiddling in reel time (27) test

Anna Babel: Who counts as a speaker of a language? - test

• John McWhorter 4 reasons to learn a new language (56) test
• Poet Ali The language of being human (50) test
• David Peterson Why language is humanity's greatest invention (49) test
• Patricia Ryan Don't insist on English! (48) test
• Archie Crowley Language around gender and identity evolves (and always has) (47) test

Anna Deavere Smith: Four American characters - test

• John Lewis and Bryan Stevenson The fight for civil rights and freedom (33) test
• Jean-Paul Mari The chilling aftershock of a brush with death (31) test
• David Carson Design and discovery (30) test
• Leah Chase and Pat Mitchell An interview with the Queen of Creole Cuisine (30) test
• John Biewen The lie that invented racism (30) test

Anna Heringer: The warmth and wisdom of mud buildings - test

• Diébédo Francis Kéré How to build with clay ... and community (33) test
• Elora Hardy Magical houses, made of bamboo (33) test
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• John Hardy My green school dream (31) test
• Christian Benimana The next generation of African architects and designers (30) test

Anna Mracek Dietrich: A plane you can drive - test

• Rodin Lyasoff How autonomous flying taxis could change the way you travel (37) test
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Anna Piperal: What a digital government looks like - test

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Anna Post: How to set the table - test

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Anna Rosling Rönnlund: See how the rest of the world lives, organized by income - test

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Anna Rothschild: Why you should love gross science - test

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Anne Curzan: What makes a word "real"? - test

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Anne F. Broadbridge: A day in the life of a Mongolian queen - test

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Anne F. Broadbridge: The rise and fall of the Mongol Empire - test

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Anne Lamott: 12 truths I learned from life and writing - test

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Anne Scherer: Why we're more honest with machines than people - test

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Anne-Marie Slaughter: Can we all "have it all"? - test

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Annette Heuser: The 3 agencies with the power to make or break economies - test

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Annie Murphy Paul: What we learn before we're born - test

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Anote Tong: My country will be underwater soon -- unless we work together - test

• Greg Stone Saving the ocean one island at a time (45) test
• Mary Robinson Why climate change is a threat to human rights (45) test
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Antara Raychaudhuri and Iseult Gillespie: The legend of Annapurna, Hindu goddess of nourishment - test

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Anthony Atala: Growing new organs - test

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Anthony Atala: Printing a human kidney - test

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Anthony D. Romero: This is what democracy looks like - test

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Anthony Goldbloom: The jobs we'll lose to machines -- and the ones we won't - test

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Anthony Hazard: The Atlantic slave trade What too few textbooks told you - test

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Antoine Gourévitch: What is deep tech? A look at how it could shape the future - test

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Antonio Damasio: The quest to understand consciousness - test

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Antonio Donato Nobre: The magic of the Amazon A river that flows invisibly all around us - test

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Antonio Garcia Vicente: Porque le enseño a niños como yo a programar - test

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• Gabe Zichermann How games make kids smarter (37) test
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Antony Gormley: Sculpted space, within and without - test

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Antón García-Abril: How prefab homes can transform affordable housing - test

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António Guterres: Refugees have the right to be protected - test

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António Guterres: The race to a zero-emission world starts now - test

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• Alok Sharma Why COP26 is our best chance for a greener future (45) test
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Anu Puusa: The case for co-ops, the invisible giant of the economy - test

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Anupam Mishra: The ancient ingenuity of water harvesting - test

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Aparna Hegde: The life-saving tech helping mothers make healthy decisions - test

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Aparna Mehta: Where do your online returns go? - test

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Aparna Nancherla: The joy of taking out the trash - test

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Aparna Pallavi: What foods did your ancestors love? - test

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Aparna Rao: Art that craves your attention - test

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April Gudenrath: Insults by Shakespeare - test

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Archie Crowley: Language around gender and identity evolves (and always has) - test

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Ari Wallach: 3 ways to plan for the (very) long term - test

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Ariana Curtis: Museums should honor the everyday, not just the extraordinary - test

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Arianna Huffington: How to succeed? Get more sleep - test

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Ariel Anbar: A needle in countless haystacks Finding habitable worlds - test

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• Nathalie Cabrol How Mars might hold the secret to the origin of life (47) test

Ariel Garten: Know thyself, with a brain scanner - test

• Kevin Kelly Technology's epic story (38) test
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Ariel Waldman: The invisible life hidden beneath Antarctica's ice - test

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Arik Hartmann: Our treatment of HIV has advanced. Why hasn't the stigma changed? - test

• Philip A. Chan How close are we to eradicating HIV? (52) test
• Shereen El-Feki HIV -- how to fight an epidemic of bad laws (50) test
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Arinjay Banerjee: Why bats don't get sick - test

• Ben Longdon How do viruses jump from animals to humans? (39) test
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• Tyler DeWitt Hey science teachers -- make it fun (29) test

Aris Venetikidis: Making sense of maps - test

• Michael Bierut The genius of the London Tube Map (35) test
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Arleen Sugano: The physics of the "hardest move" in ballet - test

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Armand D'Angour: The ancient origins of the Olympics - test

• Jane McGonigal Gaming can make a better world (23) test
• Matthew Williams Special Olympics let me be myself -- a champion (22) test
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• Keith Lowe Why we need to stop obsessing over World War II (19) test
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Armand D'Angour: The real story behind Archimedes' Eureka! - test

• Kelsey Leonard Why lakes and rivers should have the same rights as humans (26) test
• Lana Mazahreh 3 thoughtful ways to conserve water (26) test
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• Rob Harmon How to keep rivers and streams flowing (25) test
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