Chris Smeenk
University of Western Ontario
Inflationary cosmology has been widely accepted due to its successful predictions: for a “generic” initial state, inflation produces a homogeneous, flat, bubble with an appropriate spectrum of density perturbations. However, the discovery that inflation is “generically eternal,” leading to a vast multiverse of inflationary bubbles with different low-energy physics, threatens to undermine this account. There is a “predictability crisis” in eternal inflation, because extracting predictions apparently requires a well-defined measure over the multiverse. This has led to discussions of anthropic predictions based on a measure over the multiverse, and an assumption that we are typical observers. I will give a pessimistic assessment of attempts to make predictions in this sense, emphasizing in particular problems that arise even if a unique measure can be found.
Keywords inflation  cosmology
Categories (categorize this paper)
Reprint years 2014
DOI 10.1016/j.shpsb.2013.11.003
Edit this record
Mark as duplicate
Export citation
Find it on Scholar
Request removal from index
Revision history

Download options

PhilArchive copy

 PhilArchive page | Other versions
External links

Setup an account with your affiliations in order to access resources via your University's proxy server
Configure custom proxy (use this if your affiliation does not provide a proxy)
Through your library

References found in this work BETA

The Quantum Vacuum and the Cosmological Constant Problem.Svend E. Rugh & Henrik Zinkernagel - 2002 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 33 (4):663-705.

View all 16 references / Add more references

Citations of this work BETA

Does Inflation Solve the Hot Big Bang Model׳s Fine-Tuning Problems?C. McCoy - 2015 - Studies in History and Philosophy of Modern Physics 51:23-36.
The Implementation, Interpretation, and Justification of Likelihoods in Cosmology.C. D. McCoy - 2018 - Studies in History and Philosophy of Modern Physics 62:19-35.
Fine-Tuning as Old Evidence, Double Counting, and the Multiverse.Simon Friederich - 2017 - International Studies in the Philosophy of Science 31 (4):363-377.

View all 8 citations / Add more citations

Similar books and articles


Added to PP index

Total views
184 ( #52,656 of 2,420,317 )

Recent downloads (6 months)
15 ( #47,366 of 2,420,317 )

How can I increase my downloads?


My notes