I have a theory that most modern-day problems stem from the invention of trolley suitcases with wheels. I dragged one through London the other day and the amount of toes I accidentally ran over could have justified an arrest. Bags like that don’t mix well with tube travel. But should we go back to a time before wheeled suitcases? Perhaps back to a time before the wheel itself was invented? Things would be simpler. Things would at the same time be a lot more difficult. Whatever you and I might think (ban the circle), progress rumbles inexorably on, and it must be admitted that the wheel does have some useful, practical applications. So, embrace modernity! Love your mangled toes.