Abstract

According to the principle of alternate possibilities (PAP), a person is morally responsible for what she has done only if she could have done otherwise. David Widerker, a prominent and long-time defender of this principle against Harry Frankfurt’s famous attack on it, has recently had an unexpected about-face: PAP, Widerker now contends, is (probably) false. His rejection of PAP is a result, in large part, of his coming to believe that there are conceptually possible scenarios, what he calls ‘IRR-situations,’ in which circumstances that nowise bring it about that an agent performs a particular action are precisely the circumstances that make it impossible for her to avoid performing that action. The circumstances that guarantee that the agent will perform the action turn out to be immaterial, since the agent in an IRR-situation is blameworthy because she would have performed the action even if, contrary to the specified facts, an alternative course of action had been available to her. The goal of this article is to show that Widerker’s report of PAP’s demise has been an exaggeration: careful scrutiny reveals that the kind of scenario that he believes refutes the principle—his ‘brain-malfunction’ scenario—is not an IRR-situation at all.