Classical Many-Worlds Interpretation

Abstract

I present a simple baby-steps reconstruction of quantum mechanics as a fully classical theory. The most radical conceptual leap required is that there are many coexisting classical worlds, but even this is justified by the necessity of objective probabilities. These baby steps lead to a version of the many-worlds interpretation of quantum mechanics with built-in probabilities, built-in classicality at the macroscopic level, and an explanation of the complex numbers in quantum mechanics. Despite its simplicity and minimalism of radical concepts, this is not a toy model, being equivalent with quantum field theory.