[ Keita tilts his head thoughtfully. Although his own interest in science lies in the mechanical and not the alchemical, he is passingly familiar with the principles—he hasn't been thinking of the rules of the House as being analogous to alchemy, but he supposes it's a possibility. ]

We know very, very little about the House and its mechanisms at this point, [ Keita says, ] so your hypothesis is as good as any. I take it you're scientifically minded?

[ There's a mild interest there. Hard sciences definitely aren't Keita's cup of tea, but he does like the experience of listening to someone talk about something about which they're passionate.

The follow-up question gives him pause, and then he smiles again, wryly. ]

Some of them do. Not all.

[ Some of them. Not Keita, though. Or rather, he has nowhere to go, so what's the point? ]