Yuval Avnur

In a recent article, Wilson argues that Cartesian Scepticism leads to a vicious regress that can only be stopped by rejecting Cartesian Scepticism. If she is right, Wilson has solved one of philosophy's enduring problems. However, her regress is irrelevant to Cartesian Scepticism. This is evident once the proposition that we should have doubts, the person who has doubts, and the person who thinks that we should have doubts are carefully distinguished.

This article is a response to an important objection that Sherrilyn Roush has made to the standard closure‐based argument for skepticism, an argument that has been studied over the past couple of decades. If Roush's objection is on the mark, then this would be a quite significant finding. We argue that her objection fails.