Suppose for a moment you are Ben, and growing up you meet some folks who claim they are from the future, and even know and interact with a future version of yourself. If these folks are dumb enough to relate any specific details regarding future events, they have given you a power you yourself may not understand fully but the consequences are indeed dramatic.
Later in life, you might be able to glimpse the outcome of every decision you make. We all know that "whatever happened, happened" but this rule doesn't necessarily apply to you since you are in the future, not the past. So you are free to do whatever you want. BUT, your decisions could alter the future interactions of your past self with the time skippers. It's past for you, but future for them. In this case, "whatever happened, happened" means you have "instant and total recall" of your past interactions based on decisions you haven't yet made.
If you decide to kill Sawyer after the crash of 815, BECAUSE "whatever happened, happened" your memories of past would cease to include Jim Lafleur. In this case, "whatever happened, happened" means instant memory updates of future events which are not yet written in stone because you haven't gotten there yet.
I believe Jacob is just a plot device to understand this. "Jacob" is really just you... To Ben, Jacob is Ben. To Locke, Jacob is Locke. Locke also has a certain amount of premonition based on his past interactions with future aware time skippers.Theory by Albert Awol
Later in life, you might be able to glimpse the outcome of every decision you make. We all know that "whatever happened, happened" but this rule doesn't necessarily apply to you since you are in the future, not the past. So you are free to do whatever you want. BUT, your decisions could alter the future interactions of your past self with the time skippers. It's past for you, but future for them. In this case, "whatever happened, happened" means you have "instant and total recall" of your past interactions based on decisions you haven't yet made.
If you decide to kill Sawyer after the crash of 815, BECAUSE "whatever happened, happened" your memories of past would cease to include Jim Lafleur. In this case, "whatever happened, happened" means instant memory updates of future events which are not yet written in stone because you haven't gotten there yet.
I believe Jacob is just a plot device to understand this. "Jacob" is really just you... To Ben, Jacob is Ben. To Locke, Jacob is Locke. Locke also has a certain amount of premonition based on his past interactions with future aware time skippers.Theory by Albert Awol