I just thought of something. In the BSG finale, it turns out that all this happens in the far past, right? okay, so does that mean that Bob Dylan is really a plagiarist, since someone else apparently wrote "Watchtower" a million years earlier?
I mean, of all the things to transfer from one culture to another through a bottleneck of 30000 people: the word "earth," the signs of the zodiac, and one rock song. huh.
or else watchtower is some sort of weird universal phenomenon, like Gin and Tonic?