 If Oscar satisfies the antecedent of (PKI), it may seem that he is missing only comparative knowledge of content—i.e., knowledge that allows armchair discrimination between a content and a twin content (Brueckner 1999; cf. Falvey &amp; Owens 1994). And we saw that many compatibilists are already willing to surrender that type of knowledge. That’s because Oscar’s assertion “I am thinking that water is scrumptious” might still count as one kind of armchair self-knowledge (cf. section  3.1),  even if it is not of the comparative type.