The Paradox of the Boltzmann Brain in an Infinite Multiverse

If a grand multiverse contains everything that’s possible, it ends up explaining nothing. On this ID The Future, physicist Brian Miller concludes his conversation with mathematician Elie Feder and physicist Aaron Zimmer, hosts of the Physics to God podcast, about their unique formulation of the fine-tuning argument and their rigorous examination of the multiverse hypothesis. In Part 2, Feder and Zimmer explain in detail three premises they use to critically evaluate the strength of multiverse theories. They contend that if a multiverse model posits infinite universes, each with their own different laws of nature, it’s a naive multiverse that hasn’t solved the fine-tuning problem. To properly evaluate multiverse proposals, a third premise is needed: one that can explain the typicality Read More ›

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