Against phenomenalism

In this commentary, I raise four objections to the view defended in Michael Pelczar’s book, Phenomenalism: A Metaphysics of Chance and Experience. First, I challenge his claim that physical things are identical to possibilities for experience even if there turns out to be some categorical reality underlying these possibilities. Second, I argue that Pelczar’s phenomenalism cannot accommodate the existence of some unobservable entities that we have good scientific reason to accept. Third, I argue that his view threatens to lead to massive indeterminacy about what the physical world is like. Fourth, I argue that phenomenalism fares much worse than its rivals with respect to the theoretical virtue of nomological parsimony, the ideal of keeping the fundamental laws simple.