Another part of aviation that has suffered over the last half-century is general aviation, particularly its low-end segment, personal aviation, in which people fly themselves to their destinations instead of hiring a private pilot to do it. Lately I have become obsessed with the Federal Aviation Administration’s new MOSAIC rulemaking on light-sport aircraft. These include most general aviation aircraft, and they can be up to 19,000 pounds of maximum takeoff weight and include seating for up to 19 passengers, although many of them are small four-seaters. Another benefit of the safety continuum is that it provides an onramp for aviation engineering. Additional Aircraft ClassesUnder current rules, light-sport aircraft explicitly exclude helicopters and powered-lift aircraft (e.g., tilt-rotors and eVTOL aircraft).