# "A relatively brief explanation of Boltzmann Brains" by Eliezer Yudkowsky

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Text version: https://stenobird.com/podcast/lesswrong-curated-popular-5643401/a-relatively-brief-explanation-of-boltzmann-brains-by-eliezer-yudkowsky.md
Podcast: [LessWrong (Curated & Popular)](https://stenobird.com/podcast/lesswrong-curated-popular-5643401)
Published: 2026-05-18T02:45:19+00:00
Episode link: https://www.buzzsprout.com/2037297/episodes/19193219-a-relatively-brief-explanation-of-boltzmann-brains-by-eliezer-yudkowsky.mp3
Audio file: https://www.buzzsprout.com/2037297/episodes/19193219-a-relatively-brief-explanation-of-boltzmann-brains-by-eliezer-yudkowsky.mp3
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Duration seconds: 312

## Resource

(Initially written for the LW Wiki, but then I realized it was looking more like a post instead.) In 1895, the physicist Ignaz Robert Schütz, who worked as an assistant to the more eminent physicist Ludwig Boltzmann, wondered if our observed universe had simply assembled by a random fluctuation of order from a universe otherwise in thermal equilibrium. The idea was published by Boltzmann in 1896, properly credited to Schütz, and has been associated with Boltzmann ever since. The obvious ...

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