You're right that it's hard, and perhaps impossible, to construct a logical framework that doesn't involve some basic assumptions. An important one in our understanding of the universe is that the same physical laws apply everywhere. We have no way to prove that, but assume it to construct a framework to understand our surroundings. So far, it has been a pretty good assumption.

As you say, it's important to realize the limitations of our understanding, but to argue (as some - not here - do) that because we can't prove

__everything__we can't prove

__anything__is sophistry.

Cheers,

Scott.