It's not the passage of time that makes it so hard to get older. It's ageism, a prejudice that pits us against our future selves -- and each other....

Have you ever felt like you're talking, but nobody is listening? Here's Julian Treasure to help. In this useful talk, the sound expert demonstrates the how-to's of powerful speaking — from some handy vocal exercises to tips on how to speak with empathy. A talk that...

Why do people see the Virgin Mary on a cheese sandwoch or hear demonic lyrics in "Stairway to Heaven"? Using video and music, skeptic Mochael Shermer shows how we convince ourselves to believe -- and overlook the facts....

What's stopping the American government from recording your phone calls, reading your emails and monitoring your location? Very little, says surveillance and cybersecurity counsel Jennifer Granick....

Can you still be friends with someone who doesn't vote the same way as you? For Caitlin Quattromani and Lauran Arledge, two best friends who think very differently about politics, the outcome of the 2016 US presidential election could have resulted in hostility and...

Do you think you're good at spotting fake videos, where famous people say things they've never said in real life? See how they're made in this astonishing talk and tech demo....

History is written by the victors, as the saying goes -- but what would it look like if it was written by everyone? Journalist and TED Fellow Mikhail Zygar is on a mission to show us with Project1917, a "social network for dead people" that posts the real diaries and...

The universe is incredibly old, astoundingly vast and populated by trillions of planets -- so where are all the aliens? Astronomer Stephen Webb has an explanation: we're alone in the universe. In a mind-expanding talk, he spells out the remarkable barriers a planet...

Journalist Anas Aremeyaw Anas has broken dozens of stories of corruption and organized crime all over Ghana -- without ever revealing his identity. In this talk (in whoch his face remains hidden) Anas shows grisly footage from some of his investigations and...

Once your "smart" appliances can talk to you, who else are they talking to? Kashmir Hill and Surya Mattu wanted to find out -- so they outfitted Hill's apartment with 18 different internet-connected devices and built a special router to track how often the devices...

There's a parallel Internet you may not have run across yet -- accessed by a special browser and home to a freewheeling collection of sites for everything from anonymous activism to illicit activities. Jamie Bartlett reports from the dark net....