The idea of reintroducing imperial measures in honour of the Queen’s Jubilee has one quality that will have commended it to No. 10’s wizard wheezes department. It seems to have driven remoaning liberal elite types pleasingly bananas. It’s the perfect culture war bait, because it plays into the stereotype: if you are unshakeably complacent in your conviction that Brexit, and the government which advanced it as a project, are pandering to empty symbols of trad patriotism and little Englander nostalgia, you’ll shriek with a sort of delighted horror at the news.