There seems, however, to be only one significant person in the world who feels there is indeed a catch, and, a little bizarrely, that is the inventor of the technology, one Charlie Paton, the British lighting man mentioned earlier, who is currently to be found in his own experimental greenhouse, atop a three- storey former bakery at the London Fields end of Hackney, east London, feeling proud-ish, but not a little sour, about the way things have worked out 10,000 miles away in the desert between the Flinders mountains and the Spencer Gulf.