Optimism, irrational though it might be, is central to the human psyche: it gives us an advantage both in everyday life and in the evolutionary race. Sumit Paul-Choudhury joins us to share his theory of rational optimism: possibilism.

Without this optimism we would never have survived the unpredictable – and often hostile – world we evolved into. Yet optimism is not reserved for times of extremity. Its benefits manifest throughout our everyday lives: our relationships, careers, bodies and minds. And it will play a critical role in overcoming the challenges of the 21st century.

This is a powerful manifesto for hope and a much-needed new perspective on our prospects. He shows how embracing action, imagination and possibility, we can find a path to the bright side, even – perhaps especially – when the future seems dark.

Learn more about your ad choices. Visit podcastchoices.com/adchoices