My guest this week is the author and poet Joe Dunthorne. Joe’s novels include The Adulterants and Wild Abandon, as well as Submarine, which was turned into a critically acclaimed film. Joe is an old friend and helped nudge me into the water in my early 20s with good humour and a modicum of peer pressure. We sat down in London’s Kentish Town to discuss shallow dives, sibling rivalry on the beach and the perils of social media for the chronically anxious.