Name: Why The Universe Doesn't Exist - Only... | Shots In The Quark | Gan Jing World
Uploaded: 2026-01-07T08:22:43.867Z
Duration: 10 min 33 s
Description: Boltzmann brains are perhaps one of the spookiest ideas in physics. A Boltzmann brain is a single, i... | Videos | Gan Jing World - Technology for Humanity | Video & Movie Streaming

Shots In The Quark

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Boltzmann brains are perhaps one of the spookiest ideas in physics. A Boltzmann brain is a single, isolated human brain complete with false memories that spontaneously fluctuates into existence from the void. They're the kind of thing you'd find in a campfire horror story. The big problem, however, is that a range of plausible cosmological models (including our current cosmology) predict that Boltzmann brains will exist. Even worse, these brains should massively outnumber "ordinary" conscious observers like ourselves. At every moment of your existence, it is more likely that you are an isolated Boltzmann brain, falsely remembering your past, than a human being on a rocky planet in a low-entropy universe.

In this video I explain where the idea of Boltzmann brains originated, and why they haunt modern cosmology. 

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Winter Ride by Twin Musicom is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/...

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Why The Universe Doesn't Exist - Only Your Brain!

Shots In The Quark