In a complex and fast-moving world, if we want to move ahead we need to rethink the conditions for making progress in science, business and society in a fundamental way. We need to realise there is no 'right way', lose our fear of failure, embrace opportunity and take risks. We need to stop looking for leaders who can provide us with all the answers, and encourage the search for many solutions. We need to understand that to adapt to the challenges of the future, we must make mistakes, lots of them. Author and "Undercover Economist" for the Finanicial Times Tim Harford joined Festival of Dangerous Ideas to bring us wisdom from his latest best-seller 'Adapt: Why Success Always Starts With Failure.'