i have been thinking about how this show is going to end up and i have come up with alot of thoughts. but the craziest one that i have thought of was what if somehow sun,locke and ben run into jack,kate,sawyer juliet and they are 30 yrs older than they were in 1977? like the whole time they have been on the island they have already lived there before. they are hidden somewhere on the island the whole time during the plane crash. possible in the temple they are hiding away? sun would run into jin and he would be 30 years older than he was when she last saw him. jack would see locke, who he thought was dead, 30 yrs after he had thought he died. all of the people who were stuck in 1977 would be old and everyone who knew them would still be young. possible somehow, due the fact john mentioned jacob in the 50s and nobody other than richard reacted, he wasnt there yet. its possible one of the survivors could be jacob a! nd they arrived in the 70s... anyhow, i think that somehow they will reunite and they will be very different ages. somehow they are going to have to travel in time to meet up again and be the same age. the reason locke had to come back to the island was so he could lead the way for the survivors to be reunited in 2007, even though they would be older. the war that is coming has to do with the case on the beach.. and the reason why they were in the 70s... they were supposed to be so that they could be here when the war starts.. being there for 30 yrs would be enough for them to learn the island well and save the island along with the survivors from 2007. in short, the 70s timeline i think will continue until 2007 and they will meet up with the the 2007 eventually and be 30 yrs older. thats what has to happen to save the island otherwise they wouldnt be able to. Theory by gearsking