The Logic of Experimental Tests, Particularly of Everettian Quantum Theory

TL;DR

This paper argues that Everettian quantum theory can be scientifically tested by correcting misconceptions about probability and testing logic, leading to a simplified, non-probabilistic framework for fundamental physics.

Contribution

It clarifies misconceptions about probability and testing in Everettian quantum theory, demonstrating its testability and simplifying its conceptual framework.

Findings

Misconceptions about probability hinder testing of Everettian quantum theory

Correcting misconceptions shows the theory is testable without probabilistic elements

Simplifies the methodology of testing by removing the need for Bayesian credences

Abstract

Claims that the standard methodology of scientific testing is inapplicable to Everettian quantum theory, and hence that the theory is untestable, are due to misconceptions about probability and about the logic of experimental testing. Refuting those claims by correcting those misconceptions leads to various simplifications, notably the elimination of everything probabilistic from fundamental physics (stochastic processes) and from the methodology of testing ('Bayesian' credences).