S6E17 (ALMOST) MIRROR IMAGE

I thought I had a Revelation about the End. Jack was wearing the same dark blue suit on the original S1E1 episode in the bamboo forest and during the church scene. If he was wearing the exact same suit and tie, that would have made for a very interesting speculative mind melt.

But, he was not. He was clearly wearing a different tie. If he had been wearing the exact same clothes, then one could reference that as the connection between the island and the sideways solution. Since he was not wearing the same clothes, one could reference that fact as stating that the island and sideways worlds were separate.