 The skeptic has a second line of reply to the self-undermining charge, which takes the form of a dilemma. Observe that ‘water is scrumptious’ either expresses the content that the skeptic thinks it expresses, or not. If it does, then (II) is true—and so, in conjunction with (I) and (III), the slow switch argument remains standing (Brueckner 2003). On the other hand, suppose that ‘water is scrumptious’ does not express the content that the skeptic thinks it does. That just means he has a false belief about the content of his first order thought. So he lacks knowledge of its content (since knowledge requires truth). And thus SK is false in this case too. Consequently, on either horn of the dilemma, SK is threatened (Brueckner 2003).