I wanna say biochem, but I'm not a hundred percent sure. [Bart's already imagining the science play dates in his head...] Like, for Christmas, I promised that I'd take him down to the lab, and he'd show me the experiment that gave him his powers.
I kind of already saw it in therapy today [he gestures down the hall], but he impresses me every time he rattles off complicated formulas as if it were nothing.