My theory (and it's just a theory) about David Shepherd:
After seeing a photo of David in the episode preceding the finale, Locke says to Jack, "He looks just like you." I think that may have been a clue that David
was Jack, not just some random kid he dreamed up as a son. I think Jack dealt with the issues he and his own father had by "fathering" a version of his younger self.
Of course Jack wasn't aware of this (until the very end maybe), and I'm not saying that David necessarily looked exactly like Jack as a kid (Locke's comment need not be taken to that extreme). It was all on a subconcious/psychological level on Jack's part, "creating" this son in order to work through things.
I'm not sure why Claire and Juliet were able to directly interact with David, which they definitely did in some scenes.
For instance, at the concert venue, Claire and David speak to each other when Jack isn't even around. My guess is that it was necessary to help Jack think David was really his son so he could deal with this stuff and move on.
Okay, so there you go. When I think up this stuff in my head, it makes sense to me, but then when I try to articulate it and write it out, I start doubting myself and think maybe it's lame as heck. Whatever. Just throwing it out there!
Anyway, I really liked the finale. Unanswered questions, sure, but I don't mind. I doubt if answers would have really satisfied all the fans anyway. Sometimes it's better to leave things open to interpretation and wonder than to have it all laid out. I do think it was spelled out pretty clearly that the island was their real life and all the things that happened there really happened, and the alt/sideways was the place they created together to work through things, to remember, accept, let go of any baggage from the past, and meet up one last time before moving on. However...
If some, on the other hand, are convinced in their minds that the island was some sort of purgatory the entire time and that everybody died in the crash in the pilot episode, fine. Life's too short, and it's "just a tv show" after all. A great tv show, granted, but still not anything to get the old bloomers in a twist over. :)
(Edit to add that I don't think anyone here is getting bloomers or anything else in a twist over the show, but I have seen some other boards on the internet where people are being far less civil than here.)
Updated On: 5/25/10 at 06:23 PM