I have no idea of whats going on but I believe Jacob is John Locke. That explains why no one can see him. I guessing that when the incident happen, the was moved. When it was moved everyone went different places. The whole point of this season is the place everyone in their rightful place. Ben is a fraud, Richard (who is he?), Widmore the supposed to be the person under Jacob, and the survivors are the Others. For some reason the Dharma still thinks research is being conducted on the island. I still dont understnad whats is going to happen in season 6. As a faithful follower of Lost, everything seems to already happened. Everthing that has taken place, has already taken place. This is weird, but its interesting.
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