If it’s too soon to know the meaning of the French Revolution, it’s too soon to know the meaning of Covid-19. But since we still greet sneezes with the 14th-century Black Death prayer ‘Bless you’, it’s possible a few new norms will emerge. Some predict the decline of business travel, others the demise of handshakes. It seems more likely that every household will, from this day hence, maintain a dusty supply of hand sanitiser, paper masks, and emergency loo-rolls. And maybe, just maybe, we’ll remember just how truly essential our essential workers are. #