Gavin Hewitt is Chief Correspondent at BBC News. In this in-depth interview, he speaks candidly on Brexit and Trump, having observed both first hand as the BBC’s Europe Editor and then embedded in Trump’s campaign; enthuses about moving from reporting to commentating, welcoming a new-found ‘freedom’ to express his personal views; dealing with trolls while fulfilling his ‘obligation’ to engage in online debate; and argues we still haven’t realised the depth to which the technology-driven ‘Fourth Industrial Revolution’ will change every aspect of our lives.