Re: Lost 5x14: "The Variable"
I think the big question now is why did Eloise send back Jack & Co. if she knew they wern't supposed to go?
What makes you think they weren't supposed to go?
they weren't, but he was simply referring to his plan to change the future then. As far as the closed loop goes, they're absolutely supposed to be there.
That's why Eloise told Ben it would be bad if he couldn't get them all to go back. In that case it would cause a paradox and destroy the entire universe!
(Granted that's a worst-case scenario. The destruction could be very localized, limited to merely our own galaxy.)
But what if Eloise was lying...?
Or what if she meant back to the island, but not back in time?
"Everyone's always in favor of saving Hitler's brain. But when you put it in the body of a great white shark, ooohh! Suddenly you've gone too far!"