"Oh I don't. The Spirit explicitly told me there are lots of other people like me," not that he wouldn't have concluded as much with five minutes' thinking, "and I don't even particularly expect that that reader's reality is the fundamental one, or that it even bottoms out somewhere? I just—really don't think any of the four realities presented here is it, if there is an it, and I expect that when something like—no I don't know if I'm saying this right.
"Back to the reader's perspective, let's think about some other shared imaginarium, like—the Bible. Why not. There's the Bible, and there's—fanfiction of the Bible, there's movies about it and stories that take inspiration from it and—the story I originally know a you from is actually kind of Bible fanfic—there's Lord of the Rings, I don't know if that'll exist on your Earth since its author was super close friends with the author of that other series and—
"I am once again talking too much. Point is, there may be several different books that borrow from or exist in the same meta universe, and someone may write a story in that meta universe that has a me in it, and someone may write a different story that has a different person with the same bullshit going on that I do, and someone or both of those someone's may write stories where those people meet, and—they're all just as fake, or equivalently just as real, as each other."