 ‘Powerful qualities’. An interesting recent objection to the zombie idea is based on the (controversial) idea of ‘powerful qualities’: the view that all properties are both dispositional and qualitative, and indeed that a thing’s dispositions are identical with its qualities. Alexander Carruth (2016), for example, argues that the conceivability argument presupposes that while physical properties are dispositional, phenomenal ones are qualitative. On that basis a zombie duplicate of our world would instantiate our world’s dispositional properties but not its phenomenal ones. The powerful qualities view rules that out a priori, making it not even conceivable. For if a thing’s dispositions are identical with its qualities, nothing can instantiate certain dispositional properties without also instantiating whatever qualities are supposedly identical with them. Countering this line of argument, Henry Taylor (2017) claims it depends on an implausible account of the distinction between the physical and the phenomenal, arguing in particular that the physical cannot be confined to the dispositional. 