Uh.

Yeah, even though they'd had Burbage filling in all semester, it really wasn't the same and Brian was still a little shell-shocked. He didn't really deal well with change, ask anyone. Especially not change of the abrupt variety. It was jarring and disorienting and weRE THEY TALKING ABOUT BESSEL? It appeared that they were. Would you look at that.

"He's important because by figuring out how to measure distance between stars, he accidentally invented time travel." And hear him out, please. "Because the way we see stars now isn't how they are right now. It's how they were YEARS AND YEARS AGO. And he also kinda helped discover Neptune, I think? And simplified the equation they'd been using to calculate eclipses? Unless I've got the wrong guy." Which he was certain he did not.