[kharak]

What is "Q"? You seem to refer to a model that I haven't heard about and I'm curious about it. (And not sure how to Google this one).

[smolder]

I was wondering that too and think it is this aerospace term[0] as metaphor. Q can describe the sharpness/resonance of a signal filter, too, which was my first thought, but makes less sense, although they seem like related terms[1].

0: https://en.wikipedia.org/wiki/Max_Q

1: https://en.wikipedia.org/wiki/Q_factor