Anthropic Selection of Physical Constants, Quantum Entanglement, and the Multiverse Falsifiability

TL;DR

This paper examines the multiverse concept through the lens of anthropic principles, quantum theory, and mathematical realizations, assessing the potential for empirical evidence and the implications for understanding physical constants.

Contribution

It provides a comprehensive analysis of multiverse models, focusing on spacetime variability of constants, abstract mathematical multiverses, and the challenge of detecting signals from other universes.

Findings

Spacetime variability of physical constants could support multiverse hypotheses.

Quantum theory offers insights but faces challenges in detecting signals from other universes.

Mathematical and logical multiverses remain largely untestable with current technology.

Abstract

This paper evaluates some important aspects of the multiverse concept. Firstly, the most realistic opportunity for it which is the spacetime variability of the physical constants and may deliver worlds with different physics, hopefully fulfilling the conditions of the anthropic principles. Then, more esoteric versions of the multiverse being the realisation of some abstract mathematics or even logic. Finally, it evaluates the big challenge of getting any signal from "other universes" using recent achievements of the quantum theory.