As the world faces recession, climate change, inequity and more, Tim Jackson delivers a piercing challenge to established economic principles, explaining how we might stop feeding the crises and start investing in our future.

Trivia whiz Ken Jennings has made a career as a keeper of facts; he holds the longest winning streak in history on the US quiz show Jeopardy. But in 2011, he played a challenge match against IBM's supercomputer Watson -- and lost. With humor and humility, Jennings tells us how it felt to have a computer literally beat him at his own game, and ma...

Civil rights leader and longtime US congressman John Lewis spent his life fighting for freedom and justice for everyone. In this illuminating conversation with lawyer and activist Bryan Stevenson, Lewis discusses the essential importance of voting, shares encouraging words of wisdom for the generation of young people currently organizing in the ...

In "THE 99," Naif Al-Mutawa's new generation of comic book heroes fight more than crime -- they smash stereotypes and battle extremism. Named after the 99 attributes of Allah, his characters reinforce positive messages of Islam and cross cultures to create a new moral framework for confronting evil, even teaming up with the Justice League of Ame...

Thinking startup? David S. Rose's rapid-fire TED U talk on pitching to a venture capitalist tells you the 10 things you need to know about yourself -- and prove to a VC -- before you fire up your slideshow.

Actor and activist Jane Fonda discusses her frontline work fighting for climate action, including recent efforts to support climate-minded candidates running for office in the US and to break the fossil fuel industry's stranglehold on the country's government. Hear why she decided to bring her climate activism into the electoral arena after deca...

How can the US recover after the negative, partisan presidential election of 2016? Social psychologist Jonathan Haidt studies the morals that form the basis of our political choices. In conversation with TED Curator Chris Anderson, he describes the patterns of thinking and historical causes that have led to such sharp divisions in America -- and...

Accepting the 2007 TED Prize, Bill Clinton asks for help in bringing health care to Rwanda -- and the rest of the world.

Journalist Carl Honoré believes the Western world's emphasis on speed erodes health, productivity and quality of life. But there's a backlash brewing, as everyday people start putting the brakes on their all-too-modern lives.

Marcelo Mena, the former environment minister of Chile, is on a mission to create a zero-emission economy in his country by 2050. In a conversation about climate action, he discusses how the COVID-19 pandemic is changing Chile's ambitious plan to tackle climate change -- and explains why the green recovery needs to be powered by both political l...

Bored in school, failing classes, at odds with peers: This child might be an entrepreneur, says Cameron Herold. In his talk, he makes the case for parenting and education that helps would-be entrepreneurs flourish -- as kids and as adults.

In 2007, as the world worried about a possible avian flu epidemic, Laurie Garrett, author of "The Coming Plague," gave this powerful talk to a small TED University audience. Her insights from past pandemics are suddenly more relevant than ever.

Can Twitter be saved? In a wide-ranging conversation with TED's Chris Anderson and Whitney Pennington Rodgers, Twitter CEO Jack Dorsey discusses the future of the platform -- acknowledging problems with harassment and moderation and proposing some fundamental changes that he hopes will encourage healthy, respectful conversations. "Are we actuall...

In this bracingly honest talk, international security strategist Thomas Barnett outlines a post-Cold War solution for the foundering U.S. military that is both sensible and breathtaking in its simplicity: Break it in two.

Philip Zimbardo knows how easy it is for nice people to turn bad. In this talk, he shares insights and graphic unseen photos from the Abu Ghraib trials. Then he talks about the flip side: how easy it is to be a hero, and how we can rise to the challenge.

Tyler Gilmore is a veteran of the Marines who vocally expressed his support for the trans ban. In this episode Dylan connects him to Maddie Makara, a veteran who served for 16 years and recently came out as a trans woman (Audio Only).