Do the EPR correlations pose a problem for causal decision theory?

Synthese 196 (9):3711-3722 (2019)

Abstract

We argue that causal decision theory is no worse off than evidential decision theory in handling entanglement, regardless of one’s preferred interpretation of quantum mechanics. In recent works, Ahmed and Ahmed and Caulton : 4315–4352, 2014) have claimed the opposite; we argue that they are mistaken. Bell-type experiments are not instances of Newcomb problems, so CDT and EDT do not diverge in their recommendations. We highlight the fact that a Causal Decision Theorist should take all lawlike correlations into account, including potentially acausal entanglement correlations. This paper also provides a brief introduction to CDT with a motivating “small” Newcomb problem. The main point of our argument is that quantum theory does not provide grounds for favouring EDT over CDT.

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Adam Koberinski
University of Pittsburgh

References found in this work

The Problem of Hidden Variables in Quantum Mechanics.Simon Kochen & E. P. Specker - 1967 - Journal of Mathematics and Mechanics 17:59--87.
Causal Decision Theory.David Lewis - 1981 - Australasian Journal of Philosophy 59 (1):5 – 30.
Counterfactuals and Two Kinds of Expected Utility.Allan Gibbard & William L. Harper - 1978 - In A. Hooker, J. J. Leach & E. F. McClennen (eds.), Foundations and Applications of Decision Theory. D. Reidel. pp. 125-162.
Incompleteness, non locality and realism. A prolegomenon to the philosophy of quantum mechanics.Michael Redhead - 1987 - Revue Philosophique de la France Et de l'Etranger 180 (4):712-713.

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