Hello, sorry if someone has covered this already, because I haven’t seen it. Looking back at the conversation between Jacob and Nemesis/Esau/etc. , I had a few thoughts regarding its connection to the end of Stephen King’s Dark Tower series. *DARK TOWER SPOILER* The end tells us that Roland Deschain was basically caught in this infinite loop. On his journey to the Tower, but he didn’t always do things “right”; his motivation to reach the Tower wasn’t right. On reaching the Tower, he was sent back to relive his journey, with no memory of it. However, with each loop, he does something differently, and the book hints that someday he will do things as it is meant to be and there will be an END for him.
The very interesting Jacob-Nemesis conversation really reminded me of this concept, Nemesis: “They come. They fight. They destroy. They corrupt. It always ends the same.” Jacob: “It only ends once. Anything that happens before that is just progress”
Could the Island be caught in an infinite loop with some desired end, however it has taken multiple repetitions, with minor changes in each loop. Maybe we are watching the last loop.
This isn’t really a theory, I’m sure it doesn’t explain anything :) Just thought it was cool considering there are quite a few Stephen King references in Lost.