 Let’s go back to the rough idea that there is some kind of epistemic symmetry between what we take to be the actual case and a skeptical scenario. Of course, if we were the victims in a skeptical scenario, we wouldn’t know that we are not (if only because it would be false, but perhaps not only because of that). Given symmetry, even if we are not victims of a skeptical scenario, we do not know that we are not. Moreover, we know all of this. As we suggested in section 1, if we know that we don’t know that p, then we are not even justified in believing that p. Therefore, CP2. Every step in this argument can be challenged, but there is no doubt that many philosophers find something along these lines at least worth thinking about. Let us take a closer look at the first step, the claim that there is an epistemic symmetry between the good case and the skeptical scenario.