>>11184349If I were to say that I don't know something because I have no evidence for it, then that would be one thing.
If I were to say that I don't believe that I can know something, that would be another - because I would need to present evidence that shows that that knowledge was inaccessible to me.
If I were to say that you don't know something, then I would have to show that I have an inside knowledge about you that you don't have about yourself!
If I were to say that we cannot know something, or that some problem is impossible to answer, then I'm making a claim about minds or the universe as such, which would be very difficult indeed to convince someone of.
Now suppose that I am convinced that nobody can know a proposition but you have experienced an event which is sufficient evidence for it. The reasonable thing for me to say would be 'fair enough, it seems to be enough evidence for you'.