 The main focus of objection to Austin here isn’t the claim that “I know that such-and-such” can, on occasion, serve distinctive performative functions. Rather, the concern with Austin’s proposal is focused on two more specific claims. First, it is focused on the claim that “I know that such-and-such” always and only serves a distinctive performative function and so is never at the service of self-description. Second, it is focused on the claim that, in cases in which “I know that such-and-such” is used to serve a performative function, neither the felicity conditions of using the sentence in that way, nor the truth of what, if anything, one thereby states, depend in turn on whether the speaker knows that such-and-such.