Gideon Yaffe is to be commended for beginning his exhaustive treatment by asking a surprisingly difficult question: Why punish attempts at all? He addresses this inquiry in the context of defending (what he calls) the transfer principle: “If a particular form of conduct is legitimately criminalized, then the attempt to engage in that form of conduct is also legitimately criminalized.” I begin by expressing a few reservations about the transfer principle itself. But my main point is that we are justified (...) in punishing attempts only when and for a different reason than Yaffe provides. I argue that attempts are legitimately punished only when they raise the risk that a harm will actually occur. To overcome the problems my explanation encounters with factually impossible attempts, I suggest an account of risk that relies on ordinary language and possible worlds. (shrink)