Unsettling Questions

Abstract Should we expect someone who knows by seeing invariably to be able to settle the questions (i) How do you know? (ii) Why do you think so? or (iii) Are you sure? I defend the following answers. First, we should not expect someone who knows that p by seeing invariably to be able to know how they know that p. Second, we should expect someone who knows that p by seeing to have conclusive reasons for thinking that p; however, in light of the first claim, we should not expect their seeing what they do invariably to figure amongst their reasons. Although one who knows by seeing need not know how they know and need not have amongst their reasons the fact that they see what they do, still their seeing what they do can play an important role in establishing surety.