I have been re-watching season 1 all week and I am totally convinced that there is something very, very different about Locke watching this time around. Maybe Jack too. So many conversations seem different on re-watching. So many words, so many references to things that neither of them should know, and little smiles, knowing looks. Discussions about ships, "others" (before there are "others"), knowing when it would rain, saying things about other people as if they have absolute knowledge...upon original airing, these things didn't add up, but if you go back and watch now, so many things just jump out at you...
It's as if John (and maybe Jack) are already time tripping a bit and we just didn't realize that when the series first aired (but with that knowledge of possibility now, sure makes certain parts of season 1 look suspect)...or...
Jack and John are playing some game from the very beginning. Perhaps some very, very long game.....like backgammon
With their 'pieces'...which sometimes are captured and off the board, to only 'come back' later....
I was reading about backgammon the other day - not because of Lost but because I have a friend who plays with me and I was researching strategy. I was reading this site: http://www.backgammon.org/articles/backgammon-strategy/
and when I read this sentence, I was floored...made me remember Jacob saying: "It only ends once. Anything that happens before that is just progress."
Here's the quote from that site:
Backgammon is basically a race, a checker play strategy. The winner of every game is the one who gets his checkers off first. Everything that happens in between the first roll and the last roll is just positioning to get your last checker off before your opponent.
Jack and John remind me a bit of Jacob and MIB...but then, the whole series is about duality so that isn't saying much!