A feature of summer 2021 is the moment you call a business to get a quote, get the quote, wince to yourself, thank them for their time, and decide not to do the thing you were planning on doing.  Suddenly, inflation is back. The price of food, drink, hotels, builders, materials and car rentals have gone through the roof. And of course, houses. These are most extreme cases. But the general price level — that is, the price of all consumer goods — is rising quickly, too. The consumer price index for October showed 1.5 per cent deflation; in the most…