[ Poor Lucina is going to eventually learn that Jonathan Strange is the world's worst teacher. She is also going to eventually learn that Jonathan Strange doesn't have any conception of his own failings. The mention that she'd love to learn causes his expression to brighten, eyes shining with excitement. ]

I'll admit, my astronomy is poor. But that has not ever stopped me before! And besides, I know enough of the constellations back home to compare mine to these—oh, and you can tell me of your stars as well.

[ The more he talks about this, the more jazzed Jonathan is becoming. Astronomy! It sounds perfect! It's something to do, to learn, to figure out more about this place! Does he have any practical applications for it, no, not really, not in the slightest, but who cares! It sounds great! ]

If we can find constants in these diffusion zones, perhaps that is a new avenue to explore!