I sat on a small wall at the river Isar in Munich. The sun already disappeared. Suddenly there was this strange humming sound like the one in old movies when the mad professor switches on his electric engine the first time. I turned around and saw that the dark wall wasn’t dark any longer. It was an old wooden door with very bright light behind it. The rays of light shot out beneath the planks into the darkness of the autumn eve and for me it looked like an UFO parked in an stable near Area 51 started its engine.