That's right.

[he's almost sure of it, and existential uncertainty about whether Vern is really his Vern sounds so terrifying that he mentally cuts it off before it even starts. no. bad. whether everyone is really the same everyone that they were yesterday is not one of the philosophical questions he needs to get hung up on, he decides; for one thing that's starting to sound kind of stupid.]

I'm pretty sure I'd be able to tell if he remembered things differently!