Incredible. [He can't help but smile a little at the thought... and it brings forth so many questions.

After all, he hadn't noticed anything of the kind between the worlds. Him leaving, taking a child, bringing Booker DeWitt through worlds. Still, that doesn't mean these things never happened. Merely that he did not observe them.] Our main barrier was, for the transport of individuals across worlds, the effect it had on the mind and body.