Trying to make sense of it makes it impossibly stupid? Does that make those of us who try to anyway for the sake of fun, impossibly stupid?
This is just me, no, not impossibly stupid, but trying to find continuity or real science is going to be an impossible chase...why not enjoy the fantasy and the fun?
For me, I have no problem with the interaction of Supes and the Green Lantern Corps, I have no real problem with the crisis (except what happened after), but overwrought explanations of the origins of the universe coupled with exact hominid duplicates all over the place in unlikely places and elements that are universal but somehow "stronger" in certain solar systems are NOT worth trying to explain. It doesn't make the fantasy any better, and the world of science laughs...