So what you're saying is that extroversion is curable with a bit of a change of social behaviours and environment, and with a bit of practice, discipline and repetition we can turn them into mathematicians, farmers, hunters, philosophers, scientists, monks, priests and witch doctors and negate this artificial always networking and hustling environment that's only been created in the last 200 years with the industrial revolution, communication revolution and growth obsessed capitalism :)

This gives me hope: there's no silver bullet, but one day we can find a cure for our modern curse of excessive extroversion :)