I think the fact that most historically creative people were nite owls, and the fact they score better on iq tests (see http://www.psychologytoday.com/articles/

I think the fact that most historically creative people were nite owls, and the fact they score better on iq tests (see http://www.psychologytoday.com/articles/200911/intelligence-the-evolution-night-owls http://www.psychologytoday.com/articles/200911/intelligence-...) could be linked to the solitude that inevitably happens when you're up late.