It’s very likely that there will not be a living human being who knows what Neil Armstrong knew. It will all be for videotape and digital libraries, for historians and, if we’re very lucky, for poets, as well. But there will be nobody alive who actually knows. Not a single one of our fellow humans, anywhere on the Earth. That knowledge will be as dead in the world as Columbus is. One fewer person on the Earth was able to look up at the moon on Sunday night. What he thought when he looked at, night after night, is a perspective lost to all but eight old men. Sooner or later, there will be none of them left. On that day, like today, we should mourn for what we once thought we were. From that day forward, I fear, it is all going to sound like myth and magic, and the tales that the old men told around the ancient fires.