Friedrich Schiller, the eighteenth-century German poet and philosopher, said, ‘There is no causality, what we see as chance arises from a deep source.’ That is how I felt after receiving Jancis’s email suggesting I write an article about the rise of Xarel-lo as a preferred grape to produce still wine in Catalunya. Jancis has found an increasing number of wines produced solely from this grape variety in recent times. By ‘causality’ she happened to mention an article I was finalising. But what is going on for the two of us to have the same idea at the same time? I...