Everyone always complains about the weather, but no one ever does anything about it.
So the end of Lost was a disappointment. The writers set a lot of plots in motion but couldn’t figure out how to tie them altogether, so they picked the ones that they knew they could wrap up and left all the rest a “mystery.” Fine. It’s their choice and maybe there was no way to tie all those different pieces together into something that would make sense and that people would care about…or maybe there was. Here’s my attempt.
For continuity sake I will accept everything that happened through season five and I’m even going to bring along the sideways universe (but not what it ultimately turned out to be).
What is the Island?
The Island is a nexus of alternate realities, a place where time can be experienced in different ways, controlled and possibly rewritten. The electromagnetic energy is a natural occurrence a kind of safety valve for the Earth.
Who are Jacob and the Man in Black?
Jacob and the Man in Black are the embodiment of Schrödinger’s Cat. The possibly living (Jacob) and the possibly unliving (MIB). They live in a state of quantum flux, which is a fancy way of saying that they don’t quite fit into time very well and so are set aside to the island. They are diametrically opposed but also one and the same (yin/yang).
But who are they really?
In ancient times a primitive woman washed ashore on the beach of the island, the first time a human had reached the nexus. She was pregnant and died in childbirth. Due to the function of the nexus the child both lived (Jacob) and died (MIB) but neither with certainty. This dual being then was fostered by the power of the island to affect the outcome of time itself. The conscious mind of Jacob and MIB directed which timeline became dominant. Therefore on the rest of the planet humans rose from their primitive beginnings and forged empires because these demi-humans chose those timelines.
P.S. I’m not a super Lost geek, so if I’ve left a big plot hole just let me know and I’ll fill it up, because that’s what writers do.