 A third objection is directed at those noncausal theories of free will according to which free actions must be entirely uncaused. Incompatibilists often contend that determinism precludes the ability and opportunity to do otherwise and/or the ultimate sourcehood that (they allege) is required for free will. But an action’s being nondeterministically caused, it has been argued, is unlike determinism in this respect, as it is consistent with these requirements being satisfied (Capes 2017). If so, then free actions need not be completely uncaused, even if they can be.