...and (not to disagree, just to clarify) Introversion/Extraversion is part of the Big Five. It is well-supported scientifically and relatively stable throughou

...and (not to disagree, just to clarify) Introversion/Extraversion is part of the Big Five. It is well-supported scientifically and relatively stable throughout life for most people. (I say this because I've seen a lot of people who know "MBTI is bullshit" and have misunderstood that to mean that introversion and extraversion are also bullshit, because they don't know them outside of that context.)