
Contents
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5.1 Metaphysics and Perspectival Facts 5.1 Metaphysics and Perspectival Facts
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5.2 The Argument from Special Relativity against PPR about Tensed Facts 5.2 The Argument from Special Relativity against PPR about Tensed Facts
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5.3 The Metaphysics of Quantum Mechanics 5.3 The Metaphysics of Quantum Mechanics
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5.3.1 The Copenhagen Interpretation and PPR 5.3.1 The Copenhagen Interpretation and PPR
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5.3.2 The Everett Interpretation: Neutrality and the Multiverse 5.3.2 The Everett Interpretation: Neutrality and the Multiverse
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5.3.2.1 The Objection from Ockham’s Razor 5.3.2.1 The Objection from Ockham’s Razor
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5.3.2.2 Objection from Indistinguishable Subjective Copies 5.3.2.2 Objection from Indistinguishable Subjective Copies
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5.4 Privileged Perspectives and Induction over the History of Science 5.4 Privileged Perspectives and Induction over the History of Science
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5.5 Evolution and Intuition, Scope and Scale 5.5 Evolution and Intuition, Scope and Scale
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5.6 Conclusion 5.6 Conclusion
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5 Privileged-Perspective Realism in the Quantum Multiverse
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Published:April 2020
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Abstract
Privileged-perspective realism (PPR) is a version of metaphysical realism that takes certain irreducibly perspectival facts to be partly constitutive of reality. PPR asserts that there is a single metaphysically privileged standpoint from which these perspectival facts obtain. This chapter discusses several views that fall under the category of privileged-perspective realism. These include presentism, which is PPR about tensed facts, and non-multiverse interpretations of quantum mechanics, which the chapter argues, constitute PPR about world-indexed facts. Using the framework of the bird perspective and the frog perspective, it argues that PPR views are motivated by the assumption that the frog perspective is metaphysically primary. The chapter considers case studies of metaphysical interpretations of special relativity and quantum mechanics in order to demonstrate that such motivations for PPR are non-naturalistic. It considers psychological factors that motivate the appeal of PPR views and offers naturalistic explanations of why we should not expect them to lead to good metaphysics of science.
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