An increasingly popular perspective online among the young suggests that staying home alone, particularly by bed rotting, is morally superior to going out partying. As personality tests go, the introversion-extroversion scale has always been a popular way to find one’s tribe. But I remember the book by American writer Susan Cain that seemed to supercharge the introvert revolution – Quiet: The Power of Introverts in a World That Can’t Stop Talking. The 2012 global bestseller essentially