Space-Time-Matter

TL;DR

This paper explores fundamental concepts of time, spacetime, and quantum particle motion, clarifying their meanings and asymmetries in classical and quantum contexts to shed light on longstanding philosophical and scientific questions.

Contribution

It distinguishes different meanings of time and its asymmetry, providing a nuanced analysis in both classical and quantum frameworks.

Findings

Clarification of multiple meanings of time

Analysis of time asymmetry related to universe expansion

Discussion of classical and quantum perspectives

Abstract

This essay examines our fundamental conceptions of time, spacetime, the asymmetry of time, and the motion of a quantum mechanical particle. The concept of time has multiple meanings and these are often confused in the literature and must be distinguished if any light is to be thrown on this age-old issue. The asymmetry of time also has different meanings that depend on context-although the fundamental time asymmetry is associated with the expansion of the universe. These and related issues are discussed in both classical and quantum mechanical contexts.