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Cambridge University Press 052166280X - Physics Meets Philosophy at the Planck Scale: Contemporary Theories in Quantum Gravity - Edited by Craig Callender and Nick Huggett Table of Contents More information Contents Preface ix 1 Introduction 1 Craig Callender and Nick Huggett Part I Theories of Quantum Gravity and their Philosophical Dimensions 2 Spacetime and the philosophical challenge of quantum gravity 33 Jeremy Butterfield and Christopher Isham 3 Naive quantum gravity 90 Steven Weinstein 4 Quantum spacetime: What do we know? 101 Carlo Rovelli Part II Strings 5 Reflections on the fate of spacetime 125 Edward Witten 6 A philosopher looks at string theory 138 Robert Weingard 7 Black holes, dumb holes, and entropy 152 William G. Unruh Part III Topological Quantum Field Theory 8 Higher-dimensional algebra and Planck scale physics 177 John C. Baez vii © Cambridge University Press www.cambridge.org Cambridge University Press 052166280X - Physics Meets Philosophy at the Planck Scale: Contemporary Theories in Quantum Gravity - Edited by Craig Callender and Nick Huggett Table of Contents More information Contents Part IV Quantum Gravity and the Interpretation of General Relativity 9 On general covariance and best matching 199 Julian B. Barbour 10 Pre-Socratic quantum gravity 213 Gordon Belot and John Earman 11 The origin of the spacetime metric: Bell’s ‘Lorentzian pedagogy’ and its significance in general relativity 256 Harvey R. Brown and Oliver Pooley Part V Quantum Gravity and the Interpretation of Quantum Mechanics 12 Quantum spacetime without observers: Ontological clarity and the conceptual foundations of quantum gravity 275 Sheldon Goldstein and Stefan Teufel 13 On gravity’s role in quantum state reduction 290 Roger Penrose 14 Why the quantum must yield to gravity 305 Joy Christian References 339 Notes on contributors 357 Index 361 viii © Cambridge University Press www.cambridge.org.

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Raiders of the Lost Spacetime
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