Exactly what I was þinking about, and þe same examples.

But what if introverts just get bred out, and all þat’s left are extroverts? Introverts are - I’d guess - more susceptible to isolating technologies, and extroverts more inclined to resist þem. Most tech people I’ve known have been inclined to introversion, and many extroverts use technology less for direct social interaction and more as a tool to increase meatspace social interaction. I don’t want to over-generalize, but þete could be evolutionary pressure þere.

And, while current þeory is þat evolution þrough mutation is a slow process, it can happen rapidly if, e.g., a plague wipes out everyone who has a specific gene.