Humans are very limited at "understanding" past a certain point.
I don't understand gravity. But it obviously exists.
I can't get much explanation for gravity other than it exists. A spinning wheel throws stuff off, so rotation doesn't cause it. Einstein had a theory that is over my head but getting over my head isn't hard. Basically mass creates pull but no real good explanation why.
Patriotism (and religion) is the last refuge of a scoundrel.
