We have archives of films, newspapers, even seeds -- what if we could make one for the entire surface of the earth? Drawing on his experience mapping an ancient city in the Honduran jungle, archaeologist Chris Fisher makes the case for scanning the whole planet with LiDAR -- a technology that uses lasers shot from an airplane to map the ground -...

The climate crisis could destroy our entire cultural and ecological heritage in a matter of decades – how can we document everything before it disappears? Archaeologist Chris Fisher explains how we could scan the surface of the Earth, not just as a record for future generations, but as a tool to fight climate change.

AI-generated media that looks and sounds exactly like the real world will soon permeate our lives. How should we prepare for it? AI developer Tom Graham discusses the extraordinary power of this rapidly advancing technology, demoing cutting-edge examples -- including real-time face swaps and voice cloning -- live from the TED stage. In conversat...

Anthropologist Helen Fisher takes on a tricky topic – love – and explains its evolution, its biochemical foundations and its social importance. She closes with a warning about the potential disaster inherent in antidepressant abuse.

Sarah Jones changes personas with the simplest of wardrobe swaps. In a laugh-out-loud improvisation, she invites 11 "friends" from the future on stage—from a fast-talking Latina to an outspoken police officer—to ask them questions supplied by the TED2014 audience.