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\u2019s Europe Editor and then embedded in Trump\u2019s campaign; enthuses about moving from reporting to commentating, welcoming a new-found \u2018freedom\u2019 to express his personal views; dealing with trolls while fulfilling his \u2018obligation\u2019 to engage in online debate; and argues we still haven\u2019t realised the depth to which the technology-driven \u2018Fourth Industrial Revolution\u2019 will change every aspect of our lives.