Synthese

, Volume 157, Issue 1, pp 59–78

Sleeping Beauty and Self-location: A Hybrid Model

Original Paper

DOI: 10.1007/s11229-006-9010-7

Cite this article as:
Bostrom, N. Synthese (2007) 157: 59. doi:10.1007/s11229-006-9010-7

Abstract

The Sleeping Beauty problem is test stone for theories about self- locating belief, i.e. theories about how we should reason when data or theories contain indexical information. Opinion on this problem is split between two camps, those who defend the “1/2 view” and those who advocate the “1/3 view”. I argue that both these positions are mistaken. Instead, I propose a new “hybrid” model, which avoids the faults of the standard views while retaining their attractive properties. This model appears to violate Bayesian conditionalization, but I argue that this is not the case. By paying close attention to the details of conditionalization in contexts where indexical information is relevant, we discover that the hybrid model is in fact consistent with Bayesian kinematics. If the proposed model is correct, there are important lessons for the study of self-location, observation selection theory, and anthropic reasoning.

Keywords

Self-locating beliefProbability indexical informationEpistemology sleeping beauty problemAnthropic principle

Copyright information

© Springer Science+Business Media B.V. 2006

Authors and Affiliations

  1. 1.Faculty of PhilosophyUniversity of OxfordOxfordUk