Presentism and Quantum Gravity.
There is a philosophical tradition of arguing against presentism, the thesis that only presently existing things exist, on the basis of its incompatibility with fundamental physics. I grant that presentism is incompatible with special and general relativity, but argue that presentism is not incompatible with quantum gravity, because there are some theories of quantum gravity that utilize a fixed foliation of spacetime. I reply to various objections to this defense of presentism, and point out a flaw in Gödel's modal argument for the ideality of time. This paper provides an interesting case study of the interplay between physics and philosophy.
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Presentism and Quantum Gravity. (deposited 26 Mar 2002)
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