Abstract
Costa de Beauregard has proposed that physical causality be identified with conditional probability. That proposal is shown to be vulnerable on two accounts. The first, though mathematically trivial, seems to be decisive so far as the current formulation of the proposal is concerned. The second lies in a physical inconsistency which seems to have its source in a Copenhagenlike disavowal of realism in quantum mechanics.
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Stuart, C.I.J.M. Retrocausality and conditional probability. Found Phys Lett 4, 37–48 (1991). https://doi.org/10.1007/BF00666415
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DOI: https://doi.org/10.1007/BF00666415