Many years ago I read a book on the Crystal Skulls of South America. One of the Mayan prophecies has stayed with me which was that we would create something “that would feed off our flesh”. Graphic for sure and probably why that prophecy remained glued in the memory. I have occasionally pondered what this thing was that we would create. The obvious candidate has to be computers, both at home and in the workplace and ever more frequently, on the streets, in cafes, in fact, everywhere, as we feed them our time and therefore our lives. It is also how we come to be living in our heads, cut off from the living world, especially as so many of us now live in cities.