bare with me, jacob and esau are aliens, landed on earth however long ago is convienient. Its jacobs job to prove the human race is good, is to keep cycling chosen people to the island, and only they can save him from esau, but it has to be free will. esau is aloud to take many forms (smokie) and try to corrupt the humans, and prove to his brother that they will just destroy and kill everything, even if the are on a perfect island on wich they wil never die. There are a few people that know what the real battle is about, like richard and elly, but they are not able to directly interfere. esau can kill jacob, but only if the person doing the killing has been corrupted into doing it, of their own free will. Esau found the loophole long ago, and thats by tricking people to bring a dead body host for esau to turn into. christian was the last person to be used as host, and thats why he was in the cabin, to give false ! information so the humans would sink themselves. also, when ben says, "thats what i am, a liar" or that sayid is a killer, thats exactly what it means, they are that particular thing, down to there core. it looks like rose and bernard are adam and eve, and the white rock black rock even has a dual meaning. the one and only reasin why the alien thing comes into it, is along with every other yin yang combo on this show, the finale has to leave it ambiguous wether its science or religeon, we can take these people as jacob and esu from the bible, or aliens who landed there and took that identity to make it make more sense to the humans. The game has been won by evil, hence the white fade. because the science part of the show has enabled the bomb to reset the losties, they will have to return one last time, and have one final chance to be good, have peace, and not be corrupted by the evil esau alien bugger. comments please!