 It is impossible, however, to suppress a realized condition while leaving its realizer constant, so there is no sense to the demand that beliefs should have causal powers that are additional to the causal powers of their neural state realizers. Nor is it possible to suppress a phenomenal quality while holding constant a state with its (allegedly) identical neural property. Thus, saying that “there is nothing left for the property of being a belief (or a phenomenal quality) to do, once the neural realizer (or identical neural property) has done its work” does not undercut the efficacy of the beliefs or phenomenal qualities. It shows only that beliefs (or phenomenal qualities) do not satisfy a demand (for an ‘extra’ causal contribution) that is incoherent in itself.