A Study of Millions of People Uncovers the 1 Personality Trait Linked to Becoming More Intelligent (and Happier) What the article doesn't mention, is that more intelligent people have proven to actually think less. Simply adding A and B to get C, and saving most of their brain power for work. At the same time, the amount of working memory you have is the only reliable measure of anyone's career potential, which is what you'd expect in a flock of chickens. Bizarrely, this research provides a way to measure the American dream, of Life, Liberty, and the Pursuit of Happiness. My own work can use it to prove academia does not promote democracy either.