At some point, I might reach the point of knowing that others claim for themselves, but not today.
I learn something new almost daily, usually insights as to how what I've read applies to the news of the day, often in ways I hadn't been initially aware of.
As such, I think it will be a long time before I think I know much of anything, and even longer before anyone agrees with me about this status or with my opinions.
Otoh, it sure is fun watching those who do claim to know argue with each other about who is right. So many examples to emulate!