Random values of the physical parameters

TL;DR

This paper explores the idea that fundamental physical parameters might vary across different regions of the universe, discussing motivations, mechanisms, and potential tests for this hypothesis.

Contribution

It introduces a framework for understanding how physical parameters could vary and proposes methods to test this hypothesis.

Findings

Discussion of motivations for parameter variation

Mechanisms that could cause parameter variation

Proposed tests for detecting parameter variation

Abstract

I briefly describe two motivations, two mechanisms and two possible tests of the hypothesis that the physical parameters of the ground state of a theory can vary in different regions of the universe.