Remember all the speculation when Lost first started that all of them were dead and in some sort of Purgatory (ala The Sixth Sense and Vanilla Sky)?

I hope the writers don't pursue that plot idea and come up with something a little more imaginative.

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charlie98210
"Whoa!" she said. "Cry 'Havoc!' And let loose the dogs of war!"
And, like Banquo's ghost, they just won't go away.