1 Saunders and Wallace on Everett and Lewis Paul Tappenden 1 January 2008
نویسنده
چکیده
Simon Saunders and David Wallace are attempting to use a modified form of David Lewis's analysis of personal fission to support the thought that prior to undergoing Everett branching an informed subject can be uncertain about which outcome s/he will observe. I argue that a central assumption of this seductive idea is questionable despite appearing innocuous and that at the very least further argument is needed in support of it.
منابع مشابه
1 Saunders and Wallace on Everett and Lewis Paul Tappenden 1 18 June 2007
Simon Saunders and David Wallace are attempting to use a modified form of David Lewis's analysis of personal fission to support the thought that prior to undergoing Everett branching an informed subject can be uncertain about which outcome s/he will observe. I argue that the seductive appeal of the idea is an illusion arising out of failure to distinguish between the provenance and reference of...
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In the current debate on the concept of probability in the Everett interpretation of quantum mechanics Saunders and Wallace argue for a notion of pre-measurement uncertainty whilst Greaves and Myrvold attempt to do without uncertainty altogether. Both these approaches are controversial and I suggest a middle way. I develop in detail an argument which Wallace has hinted at and Greaves has seen a...
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In their paper ‘Branching and Uncertainty’, (Saunders and Wallace [2008]) aim to solve the so-called ‘incoherence problem’ commonly attributed to the Everett interpretation of quantum mechanics (EQM). The Everett interpretation posits a multiplicity of branching universes as a realistic reading of the evolution of the quantum state function. The ‘incoherence problem’ is, roughly, that our commo...
متن کاملEvidence and Uncertainty Everett ’ s Multiverse Paul Tappenden 1 12 December 2009
I endorse the view that it may be of no relevance to the acceptability of the Everett interpretation of quantum mechanics as a physical theory whether or not an informed observer can be uncertain about the outcome of a quantum measurement prior to its having occurred. However, I suggest that the very possibility of post-measurement, pre-observation uncertainty has an essential role to play in b...
متن کاملDecisions, Decisions, Decisions: Can Savage Salvage Everettian Probability?∗
Critics object that the Everett view cannot make sense of quantum probabilities, in one or both of two ways: either it cannot make sense of probability at all, or it cannot explain why probability should be governed by the Born rule. David Deutsch has attempted to meet these objections by appealing to an Everettian version of Savage’s rational decision theory. Deutsch argues not only that an an...
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تاریخ انتشار 2008