Synthese:1-28 (forthcoming)

Authors
Karen Crowther
University of Oslo
Abstract
In times of crisis, when current theories are revealed as inadequate to task, and new physics is thought to be required---physics turns to re-evaluate its principles, and to seek new ones. This paper explores the various types, and roles of principles that feature in the problem of quantum gravity as a current crisis in physics. I illustrate the diversity of the principles being appealed to, and show that principles serve in a variety of roles in all stages of the crisis, including in motivating the need for a new theory, and defining what this theory should be like. In particular, I consider: the generalised correspondence principle, UV-completion, background independence, and the holographic principle. I also explore how the current crisis fits with Friedman's view on the roles of principles in revolutionary theory-change, finding that while many key aspects of this view are not represented in quantum gravity, the view could potentially offer a useful diagnostic, and prescriptive strategy. This paper is intended to be relatively non-technical, and to bring some of the philosophical issues from the search for quantum gravity to a more general philosophical audience interested in the roles of principles in scientific theory-change.
Keywords Theory-change  Friedman  Spacetime  Background independence  Holographic principle  String theory
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Reprint years 2018
DOI 10.1007/s11229-018-01970-4
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References found in this work BETA

The Structure of Scientific Revolutions.Thomas S. Kuhn - 1962 - Chicago: University of Chicago Press.
The Structure of Scientific Revolutions.Thomas S. Kuhn - 1962 - University of Chicago Press.
The Structure of Scientific Revolutions.David Bohm - 1964 - Philosophical Quarterly 14 (57):377-379.
Quantum Gravity.Carlo Rovelli - 2007 - Cambridge University Press.
String Theory and the Scientific Method.Richard Dawid - 2013 - Cambridge University Press.

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Citations of this work BETA

Reductive Explanation and the Construction of Quantum Theories.Benjamin H. Feintzeig - forthcoming - British Journal for the Philosophy of Science:000-000.
Loop Quantum Ontology: Spacetime and Spin-Networks.Joshua Norton - 2020 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 71:14-25.

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