Welcome, and congratulations. You’ve lived long enough to see the age of flying cars—privately owned, solo-piloted aircraft, free to operate in unrestricted airspace, much as automobiles can take to the open road. And they’re all electric. I knew you’d be thrilled.Here in the future, we call them ultralight eVTOLs (electric vertical takeoff and landing vehicles). Of course, they don’t much resemble the levitating Studebakers and auto-gyrating Chevys foretold in pulp science fiction. The Pivotal BlackFly—the first series-produced ultralight eVTOL to reach the consumer market (2023)—doesn’t even have wheels. It takes off and lands on its curved keel. It’s also amphibious,...