The Physics and Metaphysics of Pure Shape Dynamics

TL;DR

This paper reviews the development of pure shape dynamics from relational mechanics, discusses its metaphysical foundations emphasizing relationalism, and explores its potential integration with quantum physics.

Contribution

It provides a comprehensive overview of pure shape dynamics' foundations, metaphysical interpretation, and future prospects in quantum physics.

Findings

Relational mechanics evolved into pure shape dynamics.

Relationalism is a nuanced metaphysical thesis.

Pure shape dynamics shows promise for quantum physics integration.

Abstract

The goal of this essay is twofold. First, it provides a quick look at the foundations of modern relational mechanics by tracing its development from Julian Barbour and Bruno Bertotti's original ideas until present-day's pure shape dynamics. Secondly, it discusses the most appropriate metaphysics for pure shape dynamics, showing that relationalism is more of a nuanced thesis rather than an elusive one. The chapter ends with a brief assessment of the prospects of pure shape dynamics in light of quantum physics.