I have a book at home that predicts the future of ‘work, rest, and play’. It was published in the year I was born, and it stands for everything I could have had, if the world had played out differently. In it, people play zero-gravity football. I could look through it and feel rather cheated, if the idea of zero-gravity football wasn’t so inherently ridiculous. Sadly, sport remains resolutely earthbound. We haven’t even got as far as the ‘escalator tennis’ that Aldous Huxley postulated in Brave New World in 1932.