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The Emergent MultiverseQuantum Theory according to the Everett Interpretation$
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David Wallace

Print publication date: 2012

Print ISBN-13: 9780199546961

Published to Oxford Scholarship Online: September 2012

DOI: 10.1093/acprof:oso/9780199546961.001.0001

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Uncertainty, Possibility, and Identity

Uncertainty, Possibility, and Identity

Chapter:
(p.257) 7 Uncertainty, Possibility, and Identity
Source:
The Emergent Multiverse
Author(s):

David Wallace

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780199546961.003.0010

This chapter considers some philosophical problems posed by the Everett interpretation: should someone expecting to undergo quantum-mechanical branching be uncertain about the result of that branching? And how are we to think about identity over time — for people, for objects, and for whole branches — in the face of continual, persistent branching? Using considerations from philosophy of language, the chapter argues for a conservative approach to these questions: properly understood, the Everett interpretation leaves these and other everyday concepts essentially untouched, even as it does violence to what philosophers have normally taken to be their metaphysical underpinnings.

Keywords:   Everett interpretation, many worlds, uncertainty, personal identity, principle of charity

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