Is it really knowledge if you don't know that you know it?
What is the capitol of Minnesota?
I don't know, and yet, a couple names spring to mind. If the one I select happens to be correct, do I in fact know the capitol of Minnesota?
It is 'in' my "memory banks", is conceptually and linguistically intelligible to me, and is ex hypothesi correct. What other features does 'knowledge' require? Certainty, a feeling of certainty?