Short, sweet, and kind’a in question form, but only ‘cuz I’m not confident and don’t have the time to flesh it out.
Though Jacob references the names on the wall, he omits the ones in the lighthouse.
Could they be the lightkeepers – until crossed out? (
And the mirror … perhaps it isn’t Jacob watching them – but a ‘mirror’ of their off-island lives (AKA, Sidewaysville) and where they *should* be …
For example, Jack sees that house as where he grew up … but isn’t that where he was living w/David? And, sure it’s where he touched Sun/Jin when they married … but what the heck are these two lovebirds gonna’ do in SLU with her all pregnant and stuff?
And, if Jack HAS a life on which Jacob reflects … the show doesn’t end with him living on the island.