How the Harvard psychologist Steven Pinker became one of the world’s most contentious thinkers

On a recent afternoon, Steven Pinker, the cognitive psychologist and bestselling author of upbeat books about human progress, was sitting in his summer home on Cape Cod, thinking about Bill Gates. Pinker was gearing up to record a radio series on critical thinking for the BBC, and he wanted the world’s fourth richest man to join him for an episode on the climate emergency. “People tend to approach challenges in one of two ways – as problem-solving or as conflict,” Pinker, who appreciates the force of a tidy dichotomy, said. “You can think of it as Bill versus Greta. And I’m very much in Bill’s camp.”

A few weeks earlier, Gates had been photographed in Manhattan carrying a copy of Pinker’s soon to be published 12th book, Rationality, which inspired the BBC series. “We sent it to his people,” Pinker said. Pinker is an avid promoter of his own work, and for the past 25 years he has had a great deal to promote. Since the 1990s, he has written a string of popular books on language, the mind and human behaviour, but in the past decade, he has become best known for his counterintuitive take on the state of the world. In the shadow of the financial crisis, while other authors were writing books about how society was profoundly broken, Pinker took the opposite tack, arguing that things were, in fact, better than ever.