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The Mathematical Universe

Max Tegmark · 2008 · Foundations of Physics, 38(2), 101–150

Spiritual Evidence Map/Last updated May 10, 2026/Claims v1.0.0-provisional/Sources v1.0.0/Scores provisional

Summary

Tegmark's full statement of the Mathematical Universe Hypothesis: the proposal that physical reality is identical with a mathematical structure.

Why it matters here

The primary source for the mathematical-universe claim. Sceptics treat the proposal as untestable; defenders treat it as the simplest ontology.

Linked claims

Evidence score 3/10
Mathematical Universe Hypothesis

Max Tegmark's claim that physical existence and mathematical existence are the same thing.

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Topic hub
Reality & Time

Physics-adjacent worldviews — block universe, many-worlds, simulation, free will.

Evidence pillar
Physics-adjacent worldview theories

Many-worlds, simulation, mathematical universe.