Cycles of Time

Cycles of Time: An Extraordinary New View of the Universe is a science book by mathematical physicist Roger Penrose published by The Bodley Head in 2010. The book outlines Penrose's Conformal Cyclic Cosmology (CCC) model, which is an extension of general relativity but opposed to the widely supported multidimensional string theories and cosmological inflation following the Big Bang.

Contents

  • Preface
  • Acknowledgements
  • Prologue

    • Part 1. The Second Law and its underlying mystery

  • 1.1 The relentless march of randomness
  • 1.2 Entropy, as state counting
  • 1.3 Phase space, and Boltzmann's definition of entropy
  • 1.4 The robustness of the entropy concept
  • 1.5 The inexorable increase of entropy into the future
  • 1.6 Why is the past different?

    • Part 2. The oddly special nature of the Big Bang

  • 2.1 Our expanding universe
  • 2.2 The ubiquitous microwave background
  • 2.3 Space-time, null cones, metrics, conformal geometry
  • 2.4 Black holes and space-time singularities
  • 2.5 Conformal diagrams and conformal boundaries
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