[Her expression stutters; when it comes back up, it's to the same airy tone, but somehow more obviously false.

"...That's some interesting assumptions. And such big ones, too! But then--I guess you can't really help it, can you."

She cocks her head to the other side, smile bright. "Anyways, didn't you say you had something you needed me to know? Not that your history lesson isn't super fascinating!"]