Mario Bunge on Gravitational Waves and the Reality of Spacetime
I discuss the recent claims made by Mario Bunge on the philosophical implications of the discovery of gravitational waves. I think that Bunge is right when he points out that the detection implies the materiality of spacetime, but I reject his identification of spacetime with the gravitational field. I show that Bunge’s analysis of the spacetime inside a hollow sphere is defective, but this in no way affects his main claim.
KeywordsOntology Spacetime Gravitational waves Substantivalism
I thank Mario Bunge for stimulating discussions. My research on gravitation is supported by Grant PIP 0338 (CONICET) and Grant AYA2016-76012-C3-1-P (Ministro de Educación, Cultura y Deporte, España).
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