Reflective Knowledge and Epistemic Circularity

This paper examines the kind of epistemic circularity which, according to Ernest Sosa, is unavoidably entailed whenever one has what he calls 'reflective' knowledge (that is, knowledge that p such that the knower reflectively endorses the reliability of the epistemic sources by which she came to her belief that p). I begin by describing the relevant kind of circularity and its role in Sosa's epistemology, en route presenting and resisting Sosa's arguments that this kind of circularity is not vicious. Then I consider the somewhat complex relationship between Sosa's views on epistemic circularity and his response to the Problem of Easy Knowledge, arguing that (on one interpretation of Sosa, at least) a complete solution to that problem cannot be extracted from Sosa's work unless the aforementioned epistemic circularity can be proved non-vicious.