TFA and almost every comment really makes me want to unleash an as-yet unfinished masterpiece of a treatise that starts by examining how "introvert" and "extrovert" are useless designations, and ends up with a searing critique of how a couple of centuries of incredibly poor psychological "science" has led to the utter misconception that "normal" is anywhere close to being a valid personality/psychological concept, along with utter red-herrings such as "neurotypical".

Alas, since I haven't actually written it yet, and it wouldn't fit in the margins, I'll just seethe in relative silence.