Abstract

This book addresses a longstanding controversy concerning whether Frankfurt cases—thought experiments of a sort devised by Harry Frankfurt—are counterexamples to the principle of alternative possibilities (roughly, the principle that a person is morally responsible for what he did only if he could have avoided doing it). Frankfurt and many others contend that they are, but here it is argued that, far from being counterexamples to the principle, Frankfurt cases actually provide further confirmation of it, a conclusion that has important implications for our understanding of free will and moral responsibility.