### "Physics Meets Philosophy at the Planck Scale"

Here's a collection of links to chapters of the book "Physics Meets Philosophy at the Planck Scale", edited by Nick Huggett and Craig Callender. These sources are all already available publicly - I'm just collecting the links in one convenient place. Not all the chapters are available, but I'll add them as and when I find them. Of course, if you like the chapters you read, and you'd like to see the rest, a good way to get them would be to buy the book.

**Preface**

1

*Introduction*Web page PDF

Craig Callender and Nick Huggett

**Part I: Theories of Quantum Gravity and their Philosophical Dimensions**

2

*Spacetime and the philosophical challenge of quantum gravity*Web page PDF

Jeremy Butterfield and Christopher Isham

3

*Naive quantum gravity*Web page PDF

Steven Weinstein

4

*Quantum spacetime:What do we know?*Web page PDF

Carlo Rovelli

**Part II: Strings**

5

*Reflections on the fate of spacetime*

Edward Witten

6

*A philosopher looks at string theory*

Robert Weingard

7

*Black holes, dumb holes, and entropy*

William G. Unruh

**Part III: Topological Quantum Field Theory**

8

*Higher-dimensional algebra and Planck scale physics*Web page

John C. Baez

**Part IV: Quantum Gravity and the Interpretation of General Relativity**

9

*On general covariance and best matching*

Julian B. Barbour

10

*Pre-Socratic quantum gravity*PDF

Gordon Belot and John Earman

11

*The origin of the spacetime metric: Bell's "Lorentzian pedagogy" and its significance in general relativity*Web page PDF

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*Web page PDF

Sheldon Goldstein and Stefan Teufel

13

*On gravity's role in quantum state reduction*

Roger Penrose

14

*Why the quantum must yield to gravity*Web Page PDF

Joy Christian

## 1 Comments:

Hi, You quote

Quantum spacetime without observers: Ontological clarity and the conceptual foundations of quantum gravity Web page Sheldon Goldstein and Stefan TeufelI will be trying to argue, in my blog Open Systems, that what Goldstein and company write is far from beingontologically clear.The first part - the beginning of my notes on Bohmian Mechanics - is already posted.Post a Comment

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