In the book's context. But in the meta-context of why it's in the book, the author's intent is to fool you into thinking it's a mistake, when it actually isn't.

In the book's context. But in the meta-context of why it's in the book, the author's intent is to fool you into thinking it's a mistake, when it actually isn't. Specifically, it's supposed to suggest the technological singularity not being a pot of gold but the death of history (and possibly humanity).