Photo cred: my dad Here’s a definition of intelligence that lots of psychologists can get behind : Intelligence is a very general mental capability that, among other things, involves the ability to reason, plan, solve problems, think abstractly, comprehend complex ideas, learn quickly and learn from experience. It is not merely book learning, a narrow academic skill, or test-taking smarts. Rather, it reflects a broader and deeper capability for comprehending our surroundings-“catching on,” “making sense” of things, or “figuring out” what to do […] Intelligence, so defined, can be measured, and intelligence tests measure it well. Intelligence sounds pretty great. Who doesn’t want to “catch on” and “make sense”? Hell, “figuring out” what to do is pretty much all of life! Naturally, people with more of this mental horsepower must live happier lives. When they encounter a problem, they should use their superior problem-solving ability to solve it.…