it's funny that we may be overthinking what the writers say is simple, yet with all the theories out there, none seems to be right in the writers view. I love the comment by one writer that the show can be figured out with a clue from the first 15 minutes... that to me is a huge red herring. Why would a show that is tackling something so huge leave such a bone to find, when they had earlier said it would take 7 seasons to describe.

I just love the show and have given up theorizing, I'm just a follower now, enjoying every minute of a well written, well cast, well acted drama.