 While Lewis may be right that the Categorical Analysis is too restrictive, his argument, all by itself, doesn’t seem to establish this. His argument is successful only if (a) he can provide an alternative analysis of ability that entails that Luke’s agoraphobia robs him of the ability to go outside and (b) does not entail that determinism robs John of the ability to raise his hand (cf. Pendergraft 2010). Lewis must point out a principled difference between these two cases. As should be clear from the above, the Simple Conditional Analysis is of no help. However, some recent work by Michael Smith (2003), Kadri Vihvelin (2004; 2013), and Michael Fara (2008) have attempted to fill this gap. What unites these theorists—whom Clarke (2009) has called the ‘new dispositionalists’—is their attempt to appeal to recent advances in the metaphysics of dispositions to arrive at a revised conditional analysis of the freedom to do otherwise. The most perspicuous of these accounts is offered by Vihvelin (2004), who argues that an agent’s having the ability to do otherwise is solely a function of the agent’s intrinsic properties. (It is important to note that Vihvelin [2013] has come to reject the view that free will consists exclusively in the kind of ability analyzed below.) Building on Lewis’s work on the metaphysics of dispositions, she arrives at the following analysis of ability: