I love this show, I watched it as a kid and am thilled to see it here on hulu. With that said there is something that has always bugged me about this show. If they were traveling from alternate reality to alternate reality, they wouldn't exist in any reality but they're own. They were born because of a very specific series of events that lead to their parents meeting and producing them as children. There is no way that exact series of events would duplicate itself in a alternate reality. It's simple chaos theory. Even if by some miracle the same two set of people had a child in each reality, there is no way the genes would produce the exact same person, the chances of it are just impossible. So in these alternate realities it should be an entire new population for them to encounter. The fact they run into alternate versions of themselves makes no sense to me. Is anybody with me on this?