Lost, Season 4, Episode 10

Things start going wrong in the future.  "Something Nice Back Home" takes us from happy (but reluctant) Jack, Kate and Aaron, to a disintegrating relationship. Jack is slowly going crazy, but it's not entirely obvious why: is it because he is an alcoholic and addicted to prescription drugs? Is it because he is seeing is father? Is it because Hurley is creeping him out? Is it because he doesn't want to be with Kate and Aaron? Or is it The Island calling him back?

There are more hints in this episode that there is some sort of destiny, with Hurley saying that Jack was not meant to raise Aaron. Which kind of implies that everything is planned out, and they are breaking the greater plan somehow. Hurley of course thinks that they are dead. Personally I think it's more likely that they changing a pre-ordained time-space path and the dead people are in fact leaking across from parallel universes.

The plot on The Island meanwhile stayed in a holding pattern this week. Well, Jack had life-saving surgery, Sawyer found dead bodies buried in the jungle and Claire walked off with her dead father,  but that's just everyday life on The Island.

I have a feeling that non-SF fans are going to be annoyed with any forthcoming answers, because they inevitably are going to involve something SFish. Surely that's been obvious from the start? And yet everyone still watches it, many wanting some rational, present-day, non-SF explanation for everything. Ho ho.