Here's an excerpt (spoilers, duh):
"I can’t help but try to fit BSG into an actual possible future, rather than some alternate-timeline future, or some Star Wars-esque thing. Since the Colonies talk about Greek gods and use all these other real world cultural references, and they do acknowledge that such a place as Earth exists, I feel like it *must* be set in a real-world possible future—otherwise the creators have stacked the deck with wild cards and we don’t know what the rules of the game are. So because of this line of thinking, I’m having trouble trying to make sense of everything that’s going on. And also, because I’m a rationalist, and since BSG uses the furniture of science fiction, I’m assuming that they live in a rational universe, and so am assuming that there’s some prosaic explanation for all the seemingly paranormal activity that’s going on. But—it’s getting harder and harder to see how any prosaic explanation will make sense."