What intelligent machines can learn from a school of fish | Radhika Nagpal

The most Martian place on Earth | Armando Azua-Bustos

What we're missing in the debate about immigration | Duarte Geraldino

Why Africa must become a center of knowledge again | Olúfẹ́mi Táíwò

How digital DNA could help you make better health choices | Jun Wang

The fascinating physics of everyday life | Helen Czerski

The real reason manufacturing jobs are disappearing | Augie Picado

What really motivates people to be honest in business | Alexander Wagner

There's more to life than being happy | Emily Esfahani Smith | TED

How our friendship survives our opposing politics | Caitlin Quattromani and Lauran Arledge

Who belongs in a city? | OluTimehin Adegbeye

A smog vacuum cleaner and other magical city designs | Daan Roosegaarde

How young people join violent extremist groups -- and how to stop them | Erin Marie Saltman

Dare to refuse the origin myths that claim who you are | Chetan Bhatt

How your pictures can help reclaim lost history | Chance Coughenour

How the US government spies on people who protest -- including you | Jennifer Granick

Fun, Fierce and Fantastical African Art | Wanuri Kahiu | TED

"The Sacred Art of the Ori" | Laolu Senbanjo

What the sugar coating on your cells is trying to tell you | Carolyn Bertozzi

What would happen if we upload our brains to computers? | Robin Hanson

A lyrical bridge between past, present and future | David Whyte

What moral decisions should driverless cars make? | Iyad Rahwan

The era of blind faith in big data must end | Cathy O'Neil

How to build a company where the best ideas win | Ray Dalio

How I found myself through music | Anika Paulson

The secret to living longer may be your social life | Susan Pinker

7 principles for building better cities | Peter Calthorpe | TED

How Boredom Can Lead to Your Most Brilliant Ideas | Manoush Zomorodi | TED

Courage is contagious | Damon Davis

Meet the microscopic life in your home -- and on your face | Anne Madden

A dance to honor Mother Earth | Jon Boogz and Lil Buck

Let's end ageism | Ashton Applewhite

How your brain decides what is beautiful | Anjan Chatterjee

How AI can enhance our memory, work and social lives | Tom Gruber

How computers learn to recognize objects instantly | Joseph Redmon

The stories behind The New Yorker's iconic covers | Françoise Mouly

Ingrid Betancourt: What six years in captivity taught me about fear and faith (w/ subtitles) | TED

Can art amend history? | Titus Kaphar

Meet Spot, the robot dog that can run, hop and open doors | Marc Raibert

You owe it to yourself to experience a total solar eclipse | David Baron

You smell with your body, not just your nose | Jennifer Pluznick

A simple new blood test that can catch cancer early | Jimmy Lin

How I fail at being disabled | Susan Robinson

Why our screens make us less happy | Adam Alter

How a handful of tech companies control billions of minds every day | Tristan Harris

What rivers can tell us about the earth's history | Liz Hajek

Jorge Ramos: Why journalists have an obligation to challenge power (with English subtitles) | TED

How we can face the future without fear, together | Rabbi Lord Jonathan Sacks