When I was growing up, one of my favorite things to hear from an adult was that I was smart. It made me feel special — like I was capable of doing things that other people weren’t.  In hindsight, that pride came with baggage: pressure to do well academically, and a sense of competition that wasn’t always necessary. Like many, I grew out of it. But many people in power still have a preoccupation with intelligence and conventional ways of measuring it.  Now, though, the way that we think about intelligence and markers of it, such as IQ, are shifting in important ways. David Robson, th...