Note, the words "Introvert" and "Extrovert" should die. It's like talking about "fatties" and "anorexics". Most people are normal. Introversion (or it's opposite, extroversion) is more or less normally distributed, unlike the bimodal distribution suggested by using polar terms.
"Male" and "Female" are examples of bimodal attributes, for which it can be pragmatic to pretend there's only two extremes. Even then, the folk who don't fit so well in either category warrant a special mention.
Spare a thought for the normal people who don't have 200 real friends (and 20,000 Facebook friends); or live alone in their mother's basement. (Not that introverts necessarily have no friends, which is a whole new can of misconceptions brought on by Myers-Briggs, as explained by Cosmopolitan in the mid-80s).
"Male" and "Female" are examples of bimodal attributes, for which it can be pragmatic to pretend there's only two extremes. Even then, the folk who don't fit so well in either category warrant a special mention.
Spare a thought for the normal people who don't have 200 real friends (and 20,000 Facebook friends); or live alone in their mother's basement. (Not that introverts necessarily have no friends, which is a whole new can of misconceptions brought on by Myers-Briggs, as explained by Cosmopolitan in the mid-80s).