Abstract

In a recent paper, Romy Jaster and Ansgar Beckermann have added a new twist to the traditional debate about the compatibility of free will with determinism. They wonder whether the abilities required for free will are compatible with determinism. According to a view that Helen Steward dubbed »agency incompatibilism«, there could be no actions and no agential powers if determinism were true. Against my advocacy of agency incompatibilism, Jaster and Beckermann argue that only a very specific kind of abilities is incompatible with determinism, and that the abilities relevant for free will do not belong to that kind. In response, I argue that their appeal to »specific abilities« blurs the crucial distinction between ability and opportunity (2), that their own analysis is ill-suited to capture the power of choosing between alternatives (3), and that libertarians need not deny the difference between a loss of freedom due to determinism and one due to mental disorders (4). I try to explain why, in attributing the abilities that constitute free will, it is impermissible to counterfactually alter the past conditions of the agent’s actual decision (5). Finally, I raise the question of how, if at all, compatibilist analyses of abilities can deal with what have been called two-way powers (6).