Neurology! That's interesting. Probably wouldn't get as much interest if you sign said "ask me anything about the brain", though, would it? I mean, we're not in a brain, so it doesn't seem as relevant.

[ he taps the side of her sign in staccato with the next five words. ]

Though - of - course - it - is.

[ a small smile. ]

Universe looks a bit like a brain, you know.