This whole time travel thing and the electromagnetic station are making me think that there was some sort of major break through in Dharma's experiments and pushing that button was stabilizing it some how.... I don't know where i'm going with this but look at all the clues. "The Black Rock, the ancient foot, the skelotons from a hundred years ago." There is something behind this show that has somehting to do with time travel.

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"You Don't Even Know What Your Running From!"-Jack