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Does Inflation Solve the Hot Big Bang Model’s Fine Tuning Problems?

McCoy, C.D. (2015) Does Inflation Solve the Hot Big Bang Model’s Fine Tuning Problems? Studies In History and Philosophy of Science Part B: Studies In History and Philosophy of Modern Physics, 51. pp. 23-36. ISSN 13552198

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Abstract

Cosmological inflation is widely considered an integral and empirically successful component of contemporary cosmology. It was originally motivated (and usually still is) by its solution of certain so-called fine-tuning problems of the hot big bang model, particularly what are known as the horizon problem and the flatness problem. Although the physics behind these problems is clear enough, the nature of the problems depends on the sense in which the hot big bang model is fine-tuned and how the alleged fine-tuning is problematic. Without clear explications of these, it remains unclear precisely what problems inflationary theory is meant to be solving and whether it does in fact solve them. I analyze the structure of these problems and consider various interpretations that may substantiate the alleged fine-tuning. On the basis of this analysis I argue that at present there is no unproblematic interpretation available for which it can be said that inflation solves the big bang model’s alleged fine-tuning problems.


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Item Type: Published Article or Volume
Creators:
CreatorsEmailORCID
McCoy, C.D. cdmccoy@ucsd.edu
Keywords: cosmology; fine-tuning; inflation; probability; scientific progress; horizon problem; flatness problem; scientific problems
Subjects: Specific Sciences > Physics > Cosmology
Depositing User: Dr. Casey McCoy
Date Deposited: 05 Sep 2015 13:31
Last Modified: 05 Sep 2015 13:31
Item ID: 11656
Journal or Publication Title: Studies In History and Philosophy of Science Part B: Studies In History and Philosophy of Modern Physics
Publisher: Elsevier
Official URL: http://www.sciencedirect.com/science/article/pii/S...
DOI or Unique Handle: https://doi.org/10.1016/j.shpsb.2015.06.002
Subjects: Specific Sciences > Physics > Cosmology
Date: August 2015
Page Range: pp. 23-36
Volume: 51
ISSN: 13552198
URI: https://philsci-archive-dev.library.pitt.edu/id/eprint/11656

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