It is quite possible we may have formed entirely erroneous ideas of what we actually see. The greenish gray patches may not be seas at all, nor the ruddy continents, solid land. Neither may the obscuring patches be clouds of vapor.
My father was both the person who gave me reason to learn how to fight and the one who taught me the basics of fighting. He would tell me that if it was a big fight, it would probably be uneven, it wouldn't be fair.