This is discussion of Descartes at a somewhat more advanced level than we are discussing him in class, but some of you might be interested in the paper “Contemporary Skepticism and the Cartesian God” (this is a PDF file) by the University of Toronto’s own Jennifer Nagel. The paper looks at one element of Descartes’s appeal to God (i.e., to clarify the limitations of human reason), and suggests ways in which this particular element (emphasizing the limitations of human reason) can still have some ‘bite’ against skepticism today. Highly recommended, for those who are interested.