Net shift of humans towards introversion?

Extraversion and introversion are a central dimension in the Big Five personality model (or OCEAN model). Being introverted or extraverted may not be mutually exclusive, but, when averaging out over all contexts, one of the two will tend to dominate, if only slightly.

If it's at all possible, what's the most reasonable trajectory from the typical 1:1 to 2:1 extravert:introvert ratio to something of the order of 2:3?

Constraints:

• The approximate target ratio refers to all of humankind
• No faster than 3 generations of change, and no slower than 16
• Preferably lasts about 500 years or longer
• Do's
  • Environmental, social or economic solutions, or any combination thereof, except where forbidden below
• Don'ts
  • Side effect of reduction in general willingness to trade; that would close off a door for the poor to make a better living
  • Cultural hegemony at any time, whether regional or universal
• Start anytime; the first point of divergence needn't be as late as the 21st century
• Please explain your answer. If you were to, say, tell me more people start living on islands, you'd need to be very convincing...
• To a first approximation, 'most reasonable' means 'most probable'

Note that if you feel this challenge is too difficult, you're allowed to have your answer change only observable behaviour, as opposed to genetics or something, to match introversion more. The constraints apply regardless.

posted over 4 years ago

subdermatoglyphic‭

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