Forget IQ. It is a concept that has become irrelevant, says author Matt Ridley. It’s how well people communicate their ideas that makes us intelligent. By communicating effectively, our ideas are able to meet and mate — a natural selection of thoughts that weeds out the bad ones — which expands our collective brain.
Think you are smarter than a monkey? Yale Psychology Professor Laurie Santos begs to differ. She has been studying human irrationally by comparing it to decision-making in our primitive relatives.