The Mathematical Universe

@article{Tegmark2007TheMU,
  title={The Mathematical Universe},
  author={Max Tegmark},
  journal={Foundations of Physics},
  year={2007},
  volume={38},
  pages={101-150}
}
  • Max Tegmark
  • Published 5 April 2007
  • Philosophy
  • Foundations of Physics
Abstract I explore physics implications of the External Reality Hypothesis (ERH) that there exists an external physical reality completely independent of us humans. I argue that with a sufficiently broad definition of mathematics, it implies the Mathematical Universe Hypothesis (MUH) that our physical world is an abstract mathematical structure. I discuss various implications of the ERH and MUH, ranging from standard physics topics like symmetries, irreducible representations, units, free… 
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