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Discussion: Realism about what?

Published online by Cambridge University Press:  01 April 2022

Alan Musgrave*
Affiliation:
Department of Philosophy, University of Otago

Abstract

Roger Jones asks what Newtonian realists should be realists about, given that there are four empirically equivalent formulations of Newtonian mechanics which have different ontological commitments and explanatory mechanisms. A realist answer is sketched: Newtonians should be realists about what the best metaphysical considerations dictate, where the best metaphysical considerations are those which have yielded the best physics. Metaphysical considerations are required within physics, just as they are required to eliminate idealist and surrealist theories which are empirically equivalent to realist ones. Realists must reject the positivist assumption that empirically equivalent theories are explanatory and evidential equivalents, too.

Type
Research Article
Copyright
Copyright © 1992 by the Philosophy of Science Association

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Footnotes

Send reprint requests to the author, Department of Philosophy, University of Otago, P.O. Box 56, Dunedin, New Zealand.

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