Discussions of the principle of alternative possibilities have largely ignored the limits of what Frankfurt-style counter-examples can show. Rather than challenging the coherence of the cases, I argue that even if they are taken to demonstrate the falsity of the principle, they cannot advance the compatibilist cause. For a forceful incompatibilist argument can be constructed from the Frankfurtian premise that agents in Frankfurtian circumstances would have done what they did even if they could have done something else. This 'counterfactual stability' (...) meets the same fate under determinism as does the ability to do otherwise. Thus the cases are irrelevant to the compatibility debate. (shrink)

In rejecting the Principle of AlternatePossibilities (PAP), Harry Frankfurt makes useof a special sort of counterfactual of thefollowing form: ``he wouldn''t have doneotherwise even if he could have''''. Recently,other philosophers (e.g., Susan Hurley (1999,2003) and Michael Zimmerman (2002)) haveappealed to a special class of counterfactualsof this same general form in defending thecompatibility of determinism andresponsibility. In particular, they claim thatit can be true of agents that even if they aredetermined, and so cannot do otherwise, theywouldn''t have done otherwise even if (...) they couldhave. Using as a central case an argument ofSusan Hurley''s, I point out that thecounterfactuals in question are both``interlegal'''' and ``indeterministic'''', and I raisedoubts about whether this special class ofcounterfactuals have clear truth conditions. Finally I suggest that acknowledging thesepoints leads to an appreciation of the realstrength of Frankfurt-style examples. (shrink)

Almost thirty years ago, in an attempt to undermine what he termed "the principle of alternate possibilities" (the thesis that people are morally responsible for what they have done only if they could have done otherwise), Harry Frankfurt offered an ingenious thought-experiment that has played a major role in subsequent work on moral responsibility and free will. Several philosophers, including David Widerker and Robert Kane, argued recently that this thought-experiment and others like it are fundamentally flawed. This paper develops a (...) new Frankfurt-style example that is immune to their objections. [Reprinted in Laura Waddell Ekstrom, ed., Agency and Responsibility: Essays on the Metaphysics of Freedom (Westview Press, 2001), pp. 241-54; and in John Martin Fischer, ed., Free Will, Vol. III (Routledge, 2005), pp. 330-42.]. (shrink)