[He hums thoughtfully.]

There are theories. I never gave them much credit, until now.

[He already knew of the greater powers he was dealing with, and none of them ever implied anything of other worlds.]

Well—time is often said to be the fourth dimension. Perhaps these separate worlds are another? Then to all of us, it's as if our lives take place within a single page of a book, but whatever's brought us here can turn those pages and cut out what they like.

[Does he expect her to get it? Not really. But he's trying anyway.]