regarding (2), I would say while energy use gets smarter, that will be offset by the greater number of electronic devices. I would also wouldn't be suprised on

regarding (2), I would say while energy use gets smarter, that will be offset by the greater number of electronic devices. I would also wouldn't be suprised once a large number devices start depending on ambient RF, then cities might deliberately dump ambient RF energy around their cities to power the potentially millions of legacy devices that might rely on ambient back-scatter.