makers – in business, in politics, in finance. And to observe that having prior opinions about everything is one of the principal characteristics distinguishing the bad decision-maker. Victims of ideology or arrogance, often talking more than they listen, such people fail to acknowledge that on almost every subject, someone else knows more than they do. They do not recognise the limits of knowledge – both the limits of their own knowledge, and the limits of all human knowledge of complex and evolving situations. They
