Abstract

It is often argued that the general propriety of challenging an assertion with ‘How do you know?’ counts as evidence for the Knowledge Norm of Assertion . Part of the argument is that this challenge seems to directly challenge whether a speaker knows what she asserts. In this article I argue for a re‐interpretation of the data, the upshot of which is that we need not interpret ‘How do you know?’ as directly challenging a speaker's knowledge; instead, it's better understood as challenging a speaker's reasons. Consequently, I argue that reasons‐based norms can equally well explain this data