Beyond Chance and Credence: A Theory of Hybrid Probabilities

Beyond Chance and Credence introduces a new way of thinking of probabilities in science that combines physical and epistemic considerations. Myrvold shows that conceiving of probabilities in this way solves puzzles associated with the use of probability and statistical mechanics. Concepts related to probability permeate physics. This is most obvious in statistical mechanics, in which probabilities appear explicitly, but even in cases when predictions are made with near-certainty, there are implicit probabilistic assumptions in play. How are we to understand these probabilistic concepts? How do they apply to the physical world? Beyond Chance and Credence offers a fresh look at these familiar topics, urging readers to see them in a new light. The book provides an overview of the history of philosophical debates about the nature of probability over the last three centuries, and clear and accessible introductions to conceptual issues in probability theory, thermodynamics, and statistical mechanics. Myrvold argues that the traditional choice between probabilities as objective chances or else as degrees of belief is too limiting, and introduces a new concept, epistemic chances, that combines physical and epistemic considerations. He goes on to show that conceiving of probabilities in this way solves some of the puzzles associated with the use of probability and statistical mechanics. The result is an innovative perspective on one of the most central topics in the philosophy of science.