You will have experienced that moment when the cinema lights go up at the end of a movie and you take a first look on at the sheer devastation on and around you. Salsa smeared down your sweater, a trail of popcorn on the seat and floor around you, smeared chocolate on the armrest; what happens to hand-to-mouth coordination in the dark? We are at the equivalent stage of the Covid-19 epidemic and economic fallout. The first show is coming to an end (although we have some reason to expect 'Covid-20' in the foreseeable future) and the first sign of light for a while will reveal the carnage.