This is a review of Alastair Wilson’s new book “The Nature of Contingency: Quantum Physics as Modal Realism”. According to Everettian Quantum Mechanics, the world we see around us is one among a great many others, in fact, there is a world for every quantum-mechanically possible sequence of events. Wilson argues that modality, i.e., possibility, necessity and related notions, can be analysed in terms of the many worlds of Everettian Quantum mechanics. Roughly speaking, an event is possible if, and only if, it occurs in some Everett world and it is necessary if, and only if, it occurs in all Everett worlds. I sketch the outline of the book, chapter by chapter, which I think is a very important contribution to the philosophy of modality and an impressive showcase for naturalistic metaphysics – a type of metaphysics that is continuous with science.
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This project has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme, grant agreement No 771509. All project outputs are published Open Access. Website photo credit: Matt Lincoln Photography
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