The midday sun blazed over Edwards Air Force Base as a roar unlike any other echoed across the vast desert landscape. This wasn't the familiar thunder of a human-piloted F-16 fighter jet, but the herald of a new era in military aviation: an experimental, orange and white F-16 controlled entirely by artificial intelligence. In the front seat, strapped in and experiencing the G-forces firsthand, was a high-ranking official – Air Force Secretary Frank Kendall.