Illustration by Daniel Haskett / Ikon Images No one in Britain knew how to mark the tenth anniversary of Brexit. And while British politics still seems to be grappling with its consequences, including the regicidal instincts it unlocked in our parliamentary parties, the debate around Brexit remains as contentious as it is confused. The incoming prime minister, Andy Burnham, is being urged to rejoin the EU from some quarters, having won a by-election in which he was forced to cosplay a Eurosceptic in homage to the memory of the referendum. And part of the problem is that contemporary political discourse tends to reward simple partisan narratives, which invariably bias towards single-cause explanations. An answer to the question “Whatever happened to the UK?” will struggle to incorporate the