Battery energy density hasn't seen any large improvements in a few years. High-flying, long-range commercial passenger aircraft are probably not coming very soo

Battery energy density hasn't seen any large improvements in a few years. High-flying, long-range commercial passenger aircraft are probably not coming very soon. An aircraft like the Bye eFlyer could help trigger a resurgence in general aviation, which has been on a decline, I suspect in part due to costs. I expect the fuel and maintenance costs for the eFlyer will be substantially lower than those of aircraft typically used for initial training. The relatively short endurance and range of the first model makes it most suitable as a trainer, but Tesla's first car wasn't what most people would want to use for a long road trip. Refinement of present-day technology might well result in an electric airplane in which four people could reasonably take cross-country trips.