Why You're Probably Not a Simulation
24:58
Why we might be alone in the Universe
23:16
The Problem With "The Rare Earth Hypothesis"
2:01:21
Is Reality Real? - Neuroscientist On Evidence We're Living In A Controlled Simulation | Anil Seth
29:17
Traveling Back in Time
26:20
Is Messaging Aliens a Bad Idea?
30:18
How Big Is The Universe?
33:12
Why We May Be Surrounded by Older Alien Civilizations
1:29:35