
Originally Posted by
GuyNemeth
Yeah I think I buy into the Jacob's Plan theory. Things like the building of the runway in Season 3 are big pieces of evidence for me. At what point he actually formed the plan, or if there was a point (i.e. his own death) after which he didn't know the outcome of the plan, to me is unclear. I think he definitely had some idea since he would appear to Hurley after his death and give him instructions. He at least appeared to still be knowledgeable about the sequence of events that would unfold. I tend to believe that even though Jacob presented the choice to become protector as an open invitation, it was Jack who he always intended to take the job. The events in "Lighthouse" to me imply that much of Jack's arc in the final season was meant to direct him towards that path.
It's also likely that Desmond was not a back up plan as was implied, but really the primary plan. All we were told throughout the narrative was that Jacob needed a new protector to take his place for when MiB inevitably found a loophole to kill him, thereby preventing MiB from escaping. Certainly it was implied that without a protector, and with all the remaining candidates dead, MiB would be free to escape. However, in the end, it appears that Jacob was not interested in that type of temporary fix. As MiB says, even if someone else takes Jacob's place, he will kill them as well. So instead of letting things drag on forever in an endless series of protectors and loopholes, Jacob decided to undo his mistake himself once and for all. He needed to kill MiB. However, MiB's power came from The Source, and so in order to kill him, he needed to disconnect the power of the Source temporarily until he could be killed, hence the need for Desmond. So even though everyone from MiB to Widmore seems to believe that Desmond is a "fail-safe", in my mind he was always part of the original plan, just Jacob was the only one who knew it.
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