TED-NamingStartups-credit Kelly Rakowski-2

Most founders still agonize over what to call their dream. Are they right to invest so much energy and time — or would any random string of letters be fine? Hackers/Founders creator Jonathan Nelson shares his take.

David Oyelowo in Selma. Photo courtesy of Paramount Pictures. | ideas.ted.com

In the movie Selma, director Ava DuVernay chronicles the 1965 marches that led to the passage of the Voting Rights Act. She explained why Martin Luther King Jr. is so much more than a symbol or an annual holiday.

Jamie Oliver. © Jamie Oliver Ltd, Photographer: Joe Sarah

Activist chef Jamie Oliver talks about the future of food.

If English teacher (and citizen scientist) Hanny van Arkel can discover a rare astronomical object in her spare time, maybe you can too.

There is no "after Ferguson" | Photo: Jon Lowenstein

In advance of the grand jury verdict, photojournalist Jon Lowenstein talks about what he saw in Ferguson, Missouri. With photos and video.

Sebastian Junger's last patrol. | Photo: Guillermo Cervera/HBO | ideas.ted.com

Veterans often have a hard time returning to civilian life after war. Sebastian Junger offers a counterintuitive theory about why

William Gibson in 2012. Photo: Gilly Youner

We called Gibson at home in Vancouver to chat about the looming apocalypse, what he was like as a student, and what advice he would give a young science-fiction writer today.