Things are on edge, right now. And there's trouble ahead: two separate but related kinds of trouble. On the positive side, the infection figures tell us we've done amazingly well over the past few weeks, bringing down Covid levels. The infections had got to absurd heights - thousands of cases a day - because the Government decided we deserved a little more social mixing at Christmas and it wouldn't do any harm to "open up the hospitality industry". As a result, the virus had a free fire zone, people died from Covid at an unprecedented rate, and some families will forever associate Christmas with the death of a loved one.