It seems to me that "I can know nothing with absolute certainty" is an absolute truth, that I accept. Maybe you don't use the term "absolute" as I expect.
It's hard for me to read you young people. I'm only a little over 50, but I feel that with you and many others on steemit, I'm talking past you. I am guessing that you must be a young man of less than 30. Maybe you're college age and into technology. You come from a background, with many or all in your generation, that does not immediately square with mine. No, I don't pretend to be psychic, and I might be wrong with these guesses. I misinterpreted things you said as arrogant, and I put a firm hand to you. I shall have to be more patient. This is a dangerous medium in this sense: if I had your body language by which to interpret your meaning, I probably would have gotten a different sense of you.