23:45

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

16:10

Is there consciousness beyond the brain? | Philip Goff | TEDxNewEngland

17:42

A Theory You've Never Heard Of | Michael Robinson | TEDxUniversityofHartford

14:14

How to respond to societal collapse | Sarah Wilson | TEDxSydney

17:45

How we found out evolution is true: John van Wyhe at TEDxNTU