" Thinking about your ancestors makes you smarter. A research team led by Peter Fischer found that spending a few minutes contemplating your family tree (as opposed to contemplating a friend, or a shopping list, or nothing at all) significantly boosted performance on tests of cognitive intelligence. Their hypothesis is that thinking about our connections to the group increases our feelings of autonomy and control. "

― Daniel Coyle , The Culture Code: The Secrets of Highly Successful Groups