Surprised? Astounded, even? You shouldn’t be. Try the following exercise to see why. Below, you’ll find ten pairs of ‘black and white’ descriptors. These are regular, everyday words that most of us will use all the time. Copy the words out on to a sheet of paper and then next to each pair jot down a single word that accurately describes the grey zone between the two extremes. Some of them are easy. Some a bit more difficult. Here’s an example: ‘black’ and ‘white’.