22:52

8 ways the world could suddenly end: Stephen Petranek at TEDxMidwest

23:45

Fermi's Paradox and the Psychology of Galactic Empires | Matthew O´Dowd | TEDxTUWien

17:07

The Myth of Nuclear Weapons: Stories Through the Mushroom Cloud | Daniel Högsta | TEDxUofM

21:22

Dark Side of AI - How Hackers use AI & Deepfakes | Mark T. Hofmann | TEDxAristide Demetriade Street

20:31

My descent into America's neo-Nazi movement & how I got out | Christian Picciolini | TEDxMileHigh