> Well, you either know a thing or not. Its really that simple. You know you are sitting at a table, typing, etc. I also accept the results of repeatable experiments, as long as I have verified them.

Marcuse and Gettier have some things to day about this (paraphrasing):

"The world is too complicated for people to verify everything themselves" -Marcuse

"Its not clear what (if anything) constitutes justified true belief" -Gettier

> I also accept the results of repeatable experiments, as long as I have verified them.

Per Quine, individual hypotheses can't be verified, only bundles of hypotheses.