I saw a cracking piece of graffiti in Paris many years ago, a huge phallus crudely drawn over a classical statue outside one of the museums in the city. If we ever get visitors from another world after we are gone will they mistake graffiti for art? Or consider our recreation in the city as something more significant than it is? Will the cities with East /West plans be seen as having a significance if visited on a solstice? Will pie charts, graphs and analysis showing downward trends make any sense? The falling white feather is as much a sign as any of the others.