First post ever...funny it is not about Macross....
I know this is extrapolation, but being that the ending sort of leaves everything open to interpretaion...is it possible that if you take the ALT reality as face-value (purgatory/waiting area/cleansing area/not ready to go into the light area)...that everyone else in it is basically also dead and just "working things" out....if so, then perhaps Jack's son is also doing the same....we just do not know his background story...perhaps he never had a dad...and in this "waiting area" he has the dad he always wanted.....the whole thing sort of reminds me of the movie Jacob's Ladder or An Occurrence at Owl Creek Bridge.......
Some of the things that I still do not understand are the following:
Who were Widmore and Eloise? Why were they fearful and/or wanted to possess the islands power...and did they really know what it really represented? What did Widmore tell the fake Locke? How did Widmore know how to contain the smoke monster? (for this I am beginning to think that Widmore was a descendant of some of the initial island inhabitants who happened to "discover" that the islands pockets of electromagnetism kept them "safe" from the smoke monster...again, since this was not explained it is all open to interpretation)...
Why did Jacob reappear as a boy?
Illana and her team.....who were they really? They sort of reminded me of that secret society that protected the Holy Grail in the Indiana Jones and the Last Crusade movie.....
Why did the MIB have to die? I still do not think he was evil...he was just a victim of circumstance....I would have preferred that (after he lost his "powers")....he would have been allowed to leave the island with Sawyer, kate, etc on the plane...he could have returned to the REAL world and just live the rest of his life as LOCKE....no one would have known.....except Kate, Sawyer, Miles, Richard and Lapidis that were on the plane.....I feel sorry for him, what happened to his mom, and what he became....we never even found out his real name
All in all, I was satisfied with the ending...I think the show set a high standard and will be hard to top......