The Big Five Characteristics

Each of those personality traits represent the possibility of inhabiting a kind of niche, right in ecological nich. So if you're an extriverted person, your niche is the social environment. If you're an introverted person, the nich is, i think, nature. And because he's tortured by that, his thoughts take an unbelievably dark turn. It's unimaginably dark. That seems to make a higher order superfactor extraversion and openness, called plasticity,. As opposed to stability, which is conscientiousness, agreeableness and emotional stability.