Can someone help explain this? [spoilers]
I understand the ending and all of its intricacies, however I noticed something as I watched a friend play through the game.
Early in the game at Battleship Bay after you find Elizabeth, there is a mysterious woman that notices Elizabeth and calls her out as Anna (or Annabelle or something). Elizabeth is confused and says that the woman must be mistaking her for someone else. Having realized at the end that Elizabeth is actually Anna DeWitt, how can that character recognize her as Anna if Comstock in that reality was sterile? He couldn't have produced an Anna of his own in that reality, which is why he needed to steal the Anna in an alternate dimension. So there's really no way that she could have known Anna as far as I can tell.
Any one have any ideas?