In other words, no facts can be known. So I guess we are back to concepts.
Actually I don't think it's off topic at all.
Of course it's off topic. You went to my profile to see if you could find out anything about ME, instead of simply responding to what I said. Who I am is irrelevant. What I believe is irrelevant. Why I believe it is irrelevant. Where "I'm coming from" is irrelevant.
Ideas and concepts are the same as theories.
That is incorrect. I can have a concept about factual things. I can have ideas about factual things. That is not theory.
Well said!!!!