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“Dust, Time, and Symmetry.” British Journal for the Philosophy of Science 56 (2005) 255-91.
(published version) [preprint]
Abstract. Two symmetry arguments are discussed, each purporting to show that there is no more room for a preferred division of spacetime into instants of time in general relativistic cosmology than in Minkowski spacetime. The first argument is due to Gödel, and concerns the symmetries of his famous rotating cosmologies. The second turns upon the symmetries of a certain space of relativistic possibilities. Both arguments are found wanting.
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