Leszek Wroński is an assistant professor in the Institute of Philosophy of Jagiellonian University in Kraków. His previous book, a study of the prospects of various formulations of the Common Cause Principle, was published as Reichenbach’s Paradise in 2014. He is mainly interested in formal epistemology and philosophy of probability, having authored and coauthored papers on probabilistic causality and the branching space-time theory. He sings in a vocal ensemble specializing in the Baroque period and leads one whose sole period of interest is the Renaissance.