(March 17, 2021 at 4:40 am)Superjock Wrote: If someone asks me how do I know if the existance or the universe is the absolute grounding (Darth likes to use the words Ultimate in particular) my answer is I don't know.
I think "I don't know" is a wise position.
The trouble is that guys like him who like to fight will take it as an expression of weakness, and try to pound you over the head with it. I don't think they are interested in the truth -- only in winning. As if "winning" debates on the Internet were worth anything.
Epistemology is a fascinating subject, though. Probably you've already spelled out the standard position: we hold things to be true based on either 1) experience, or 2) logic.
Since we are easily fooled by experience, and don't have access to any "absolute" source of knowledge, the best we can do is just double check things and remain modest.