You know, in a way, I think this is actually less flawed than it appears: it implies that if no one is truly bowl-shaped, then everyone has ADHD to some degree,

You know, in a way, I think this is actually less flawed than it appears: it implies that if no one is truly bowl-shaped, then everyone has ADHD to some degree, and merely lies somewhere on an ADHD/focus-gradient-space continuum