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					Originally Posted by  fresnelly
					 
				 
				One more crackpot unfounded theory: Now that Time travel is in play, I think Jacob isn't a ghost or spirit, but a man who is "out of phase" with the time frame of the island.  How or why, I have no idea. 
			
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 I've been thinking the same thing.  My crackpot theory contribution is that Jacob is John Locke or, perhaps, Aaron.