of radio waves is up and down in probably one one-hundred billionth of a second. It just goes bang and it's gone, and that's what we're looking for. There is a beautiful saying by an American, a philosopher, Alan Watts, and he used to say that through our eyes, the universe is perceiving itself, and through our ears, the universe is listening to its cosmic harmonies, and we are the witness through which the universe becomes conscious of its glory, of its magnificence. thedral.