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Reckoning The Shape Of Everything: Underdetermination And Cosmotopology, P.D. Magnus

Philosophy Faculty Scholarship

This paper offers a general characterization of underdetermination and gives a prima facie case for the underdetermination of the topology of the universe. A survey of several philosophical approaches to the problem fails to resolve the issue: the case involves the possibility of massive reduplication, but Strawson on massive reduplication provides no help here; it is not obvious that any of the rival theories are to be preferred on grounds of simplicity; and the usual talk of empirically equivalent theories misses the point entirely. (If the choice is underdetermined, then the theories are not empirically equivalent!) Yet the thought experiment …