The &quot;speculation&quot; is the worst part of a science research. It gets the most air play but has but has the least basis in fact.<p>Perhaps more intelligent people (by IQ test) are more introverted -- more thinking less feeling&#x2F;EQ, and so are less comfortable with the company of other people they don&#x27;t know well. That certainly fits the bookworm&#x2F; computer nerd &#x2F; uberhobbyist type of high IQ person.