also don't forget that this IS a separate timeline.
Not really. Like a tree that forks due to injury and regrows back together is still one tree or a river divided by a boulder flows together around the rock is still one river. There is only 1 timeline. Both sets of events happened and both are true.
And in a few episodes no doubt, Mistress Exposition aka Elloise Hawking will show up and tell us something like this.
I think that Jack's sense of deja vu/disorientation--and particularly the cut on his neck--are important clues that something more than a simple reset is going on.
They obviously have to tie the alt story into the one we've been following for five years--I'm just trying to figure out how that's going to happen. If the purpose of the alt timeline is to show the continuation of Jack's journey in an attempt to save or preserve everything we've seen before, then we would be emotionally invested in it.
yes. But I think where you're getting lost (heheh) is in thinking one set of events must become the "real" set of events, negating the other. It seems Charlie, for example, must be alive or dead, when he can be both. So once the paradox is mended, it's possible for a mingling of the characters from the 2 sets of events such as a 'sideways' Charlie living out his days with Claire, or good Locke killing evil Locke - though that task might fall to Ben, Grima Wormtongue style.
...so cosmic forces (call it fate if you like) create new situations to get the same results.
exactly. Ka.
or in cruder terms, it's like Death trying to set things right in the cheesy Final Destination films.
Jack will have to choose (but it's really no decision at all since he's already done it and must do it again) to sacrifice and help mend the timeline. I'm still guessing he'll end up stranded in the past with Kate presumably, become the Adam & Eve skeletons, and give Jacob the original list of 815s he must meet, starting the whole ball of wax. Jacob knew of the 815ers and set up his end game for these events against MiB thousands of years ago. The end is the beginning is the end.
Who knows which one is real or true--maybe they both are. But if the writers want me to say that a plane crashing and not crashing are the same thing, then they're going to have to give me a few weeks for my brain to catch up.
yes. both happen and are real.
Read The Dark Tower book 3: The Wastelands (or wiki it) for a more detailed explanation. As I guessed, they are cribbing the paradox (in a good way), and presumably the resolution, from The Dark Tower as Lindelof has lifted so much from that series already for Lost.
The Lost "paradox mending" scene, likely both versions of Jack & co working simultaneously in their respective worlds towards the same goal, will have to be something special to live up to The Dark Tower's version which involved a hand carved key, a house coming to life and an invisible sex demon.