My terrestrial environment is not destroyed at all. In fact it is quite pleasant. The occasional buzzing quadra-copter would be sweet music compared to the in

My terrestrial environment is not destroyed at all. In fact it is quite pleasant. The occasional buzzing quadra-copter would be sweet music compared to the infernal leaf blowers and lawn-care equipment that gets a frequent workout. These aren't going to end the world. Especially if it saves lots of people making lots of small trips to the shops for single items. In fact I would say they would make a positive contribution to quality of life. >FYI I'm not a luddite But you are talking like one.