Metaphysics

Mathematical Universe Hypothesis #

by Max Tegmark

According to the hypothesis, the universe is a mathematical object in and of itself. Tegmark extends this idea to hypothesize that all mathematical objects exist, which he describes as a form of Platonism or Modal realism.

Georg Wilhelm Friedrich Hegel. “What is reasonable is real; and what is real is reasonable.” #

An illustration: Gödel’s Completeness Theorem. This theorem states that a theory has a model (it is real) if and only if it is consistent (reasonable: it is not possible to derive a contradiction from it).

Anthropic principle #

Vladimir A. Lefebvre. THE ANTHROPIC PRINCIPLE IN PSYCHOLOGY AND HUMAN CHOICE

Anatol Rapoport. HUMAN REFLEXION AND THE ANTHROPIC PRINCIPLE. Commentary on Lefebvre on Human-Choice

Also: Un peu de métaphysique (principe anthropique, fine-tuning, cerveaux de Boltzmann, simulations, et pourquoi nous sommes là)