Probability and Typicality in Deterministic Physics

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Hemmo, Meir; Shenker, Orly R.
preprint description
Recently it has been argued that typicality considerations play a crucial explanatory role in deterministic theories in physics (e.g. classical statistical mechanics and Bohmian mechanics). In this approach a sharp distinction is made between typicality and probability. We analyze in this paper the relation between the notion of typicality and probability, the question of the choice of measure in deterministic theories in physics, and the way in which probability and typicality arise and should be understood in such theories. We argue that in deterministic theories it is the notion of probability rather than typicality that may (sometimes) have explanatory value.