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Title

On the Nature of Time
Author

Stephen Wolfram
Organization: Wolfram Research, Inc.
URL: http://www.stephenwolfram.com
Book information

Publisher: Wolfram Media
Copyright year: 2025
ISBN: 9781579551032
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Contents

  • The Computational View of Time
  • The Role of the Observer
  • Multiple Threads of Time
  • Time in the Ruliad
  • So What in the End Is Time?
Description

What is time, really—and why does it seem to flow?

In this short essay, Stephen Wolfram explores time not as a coordinate or backdrop but as something generated by the ongoing computation of the universe itself. Drawing on ideas from his Physics Project, he explains how the passage of time—our experience of one moment giving way to the next—arises from the limits of what observers like us can compute. We can't see the future all at once; we have to compute it step by step.

With clear explanations and real implications for physics and philosophy alike, On the Nature of Time shows how a computational perspective helps make sense of one of the most familiar and puzzling features of our reality.
Subject

*Science > Physics
Keywords

spacetime, physics, observer theory, wolfram physics project, construct of time computational irreducibility, universe relativity computational equivalence, ruliad bounded observers hypergraph branchial, philosophy