 So has the skeptic escaped the self-undermining charge? There may still be a question about the skeptic’s adoption of (III). It may seem that this is entirely justified, but why is that exactly? Apparently, it is because the skeptic is justified in thinking that ‘water is scrumptious’ might express a different thought than the one it actually expresses on Earth, viz., that water is wet. Yet notice that this last bit assumes (II) (Brueckner &amp; Ebbs, 2012, ch. 12). But at this stage, the skeptic has already conceded that (II) might be false, due to the possibility of a “weird world.” So if (III) is justifiably believed only if (II) is—and (II) was already surrendered—then the skeptic must concede the justification for (III). So a kind of self-undermining worry remains (Brueckner &amp; Ebbs, ch. 12. For a response, see ch. 13).