First and Second Person

You and I are having a (somewhat one-sided) conversation. And I have just articulated the hypothesis that this is the case.

If it were not the case, then I wouldn't be able to do this.

It is a fact about the world that we are having this conversation.

So we have the following;

• We can make unequivocal statements about the world. Synthetic a priori statements, if you like.
• Semantic consistency is possible - 'conversation' is a generic term. Without other instances of conversations, it is hard to know what my claim that we are having one might mean.

Neither of these claims implies any epistemically prior enabling mechanisms. In fact, no such enabling mechanism can be specified which is better grounded than the claims themselves, since similar claims are presupposed by any account of an enabling mechanism that we might give.