Hurley stumps Miles in the time travel debate

Back at the Dharma house, Hurley and Miles are still discussing time travel. Hurley if all of this has already happened and the conversation they're having has already happened and Miles answers yes. Hurley proclaims Miles' theory wrong because he doesn't know what he's going to say next. Miles says the conversation already happened, but not for them because for them it is happening right now. Hurley asks why he doesn't remember any of this if it has already happened. Miles says that once Ben turned the donkey wheel, time isn't a straight line for them anymore. He says that their experiences in the past and future occurred before these experiences now. Hurley asks him to say that again and Miles pulls out a gun and tells Hurley to shoot him. Hurley says that he can't shoot him because if he dies in 1977 then he'll never come back to the island on the freighter 30 years from now. Miles tells him that he can die because he's already come to the island on the freighter. He says that any of us can die because this is our present. Miles says that Ben can't die because this is currently his past, not his present and he has to live to grow up to lead the others. Hurley asks Miles why Ben wouldn't have remembered Sayid shooting him as a child when he tortured him years later in the Swan Station. Miles pauses and says "Huh, I hadn't thought of that." Hurley leans back and crosses his arms in victory.

There's not much to say here. This was a heavy conversation about time travel which Miles seems to have figured out pretty well except that last little bit about Ben.