Henry liked to put to himself when he was a schoolboy: what are the chances of this particular fish, from that shoal, off that continental shelf ending up in the pages of this copy of the Daily Mirror? Something just short of infinity to one. Similarly, the grains of sand on a beach, arranged just so. The random ordering of the world, the unimaginable odds against any particular condition, still please him. Even as a child, and especially after Aberfan, he never believed in fate or providence, or the future being made by someone in the sky. Instead, at every instant, a trillion trillion possible futures; the pickiness of pure chance and physical laws seemed like freedom from the scheming of a gloomy god.