Bens Van. Dharma. We get it, reincarnation.

Locke is dead. The question is, what is he reincarnated as? I'm thinking...Vincent? Ok, maybe, maybe not, but Vincent HAS to be a character we know from the show.

The reason the people on the island can't have babies is because Jacob is TRYING to be reincarnated as a baby, but can't for whatever reason.