A simple theory of every 'thing'

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11 Citations (Scopus)


One of the criteria to a strong principle in natural sciences is simplicity. This paper claims that the Free Energy Principle (FEP), by virtue of unifying particles with mind, is the simplest. Motivated by Hilbert's 24th problem of simplicity, the argument is made that the FEP takes a seemingly mathematical complex domain and reduces it to something simple. More specifically, it is attempted to show that every 'thing', from particles to mind, can be partitioned into systemic states by virtue of self-organising symmetry break, i.e. self-entropy in terms of the balance between risk and ambiguity to achieve epistemic gain. By virtue of its explanatory reach, the FEP becomes the simplest principle under quantum, statistical and classical mechanics conditions.

Original languageEnglish
Pages (from-to)79-85
Number of pages7
JournalPhysics of Life Reviews
Publication statusPublished - Dec 2019
Externally publishedYes


  • Brain/physiology
  • Models, Theoretical
  • Hilbert's 24th problem
  • simple proof
  • free energy principle


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