 the U-2 spy plane or the SR-71 Blackbird or the stealth bomber or the B-2 bomber, something like that before we knew what it was. Now, we all know what these things are. You can go visit them at museums. But imagine seeing that. I mean, these are the stories we heard from pilots in the 1950s and 60s. They're up 30,000, 35,000 feet going 600 miles an hour. And there's some shiny object above them, way above them.