> More generally speaking, I think people model positive and negative personality traits to balance out. Like a fixed skill cap in an RPG. 10 points on charisma

> More generally speaking, I think people model positive and negative personality traits to balance out. Like a fixed skill cap in an RPG. 10 points on charisma means you have to be lacking in some other field. I don't believe this to be true in the real world. This reminds me a lot of the stereotypes about nerds and jocks in TV shows and films, or the articles online about why nerds are unpopular. You can definitely see an assumption that 'popularity' or 'attractiveness' is somehow negatively correlated with 'intelligence' or 'being a nice person'. Half of the school tropes on TV Tropes seems to be based on that one. That said, from my experience (anecdotal I know) and what I've heard from others, it seems the correlation between introversion/extroversion and being better/worse at various things is basically non existent. There are as many unskilled introverts and 'nerd' type individuals as there are extrovert ones, and vice versa.