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Probability, Self-Location and Quantum Branching

Lewis, Peter J. (2008) Probability, Self-Location and Quantum Branching. In: [2008] Philosophy of Science Assoc. 21st Biennial Mtg (Pittsburgh, PA).

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    Abstract

    The main problem with the many-worlds theory is that it is not clear how the notion of probability should be understood in a theory in which every possible outcome of a measurement actually occurs. In this paper I argue for the following theses concerning the many-worlds theory: (1) If probability can be applied at all to measurement outcomes, it must function as a measure of an agent’s self-location uncertainty. (2) Such probabilities typically violate Reflection. (3) Many-worlds branching does not have sufficient structure to admit self-location probabilities. (4) Decision-theoretic arguments do not solve this problem, since they presuppose Reflection.


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    Item Type: Conference or Workshop Item (UNSPECIFIED)
    Keywords: Everett, many worlds, probability, reflection, Sleeping Beauty
    Subjects: Specific Sciences > Physics > Quantum Mechanics
    Conferences and Volumes: [2008] Philosophy of Science Assoc. 21st Biennial Mtg (Pittsburgh, PA)
    Depositing User: Peter J. Lewis
    Date Deposited: 05 Nov 2008
    Last Modified: 07 Oct 2010 11:17
    Item ID: 4309
    URI: http://philsci-archive.pitt.edu/id/eprint/4309

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