I've studied nuclear war for 35 years -- you should be worried. | Brian Toon | TEDxMileHigh
19:45
The insanity of nuclear deterrence | Robert Green | TEDxChristchurch
21:52
No Sex Marriage – Masturbation, Loneliness, Cheating and Shame | Maureen McGrath | TEDxStanleyPark
17:33
Artificial Intelligence: it will kill us | Jay Tuck | TEDxHamburgSalon
17:33
Why renewables can’t save the planet | Michael Shellenberger | TEDxDanubia
22:52
8 ways the world could suddenly end: Stephen Petranek at TEDxMidwest
16:13
Why do we celebrate incompetent leaders? | Martin Gutmann | TEDxBerlin
17:42
A Theory You've Never Heard Of | Michael Robinson | TEDxUniversityofHartford
17:54