 The skeptic might offer two different replies to the self-undermining charge. The first is that, although the exact content of (II) may be unknown, the skeptic can still be justified in accepting (II) (Brueckner 1997b). For it seems that (II) can be shown true, no matter whether the skeptic speaks English or Twin English. After all, regardless of what ‘water’ denotes, it is true to say “ ‘water is scrumptious’ expresses the thought that water is scrumptious.” Moreover, since the skeptic can recognize this from the armchair, it seems he can be justified in accepting (II), even while assuming (III).