Whenever I write about something it’s always helpful to understand it. Like all of you I’ve watched the coronavirus drama develop slowly and menacingly, but any detailed or real understanding of the scale of what it might evolve into is elusive to those with expertise in the area, let alone people like me. Fortunately Nigel Farage popped up on the BBC this week to give his verdict on the coronavirus crisis, and who better to opine on the issue than someone highly skilled at spreading virulent and insidious poison around the country?