Aircraft autopilots are glorified lane-keeping and assistance devices that steer a course in an environment that is reserved for airplanes, with clear lines of

Aircraft autopilots are glorified lane-keeping and assistance devices that steer a course in an environment that is reserved for airplanes, with clear lines of sight, clear slots for the individual vehicles and substantial separation between all vehicles in the lane. The environment is free of pedestrians, cyclists, children, footballs and other participants in traffic. If Tesla wants to subscribe to the definition of “autopilot” with the capabilities profile used in aircraft, it must only be usable in comparative environments - that is: a few hundred feet above ground, for takeoff and landing with instrument assist and with pre-assigned slots and fixed routes.