>Things drones can't do: go fast enough to cross the sky in a blink, stop on a dime or turn sharp corners at jet speeds, travel at jet speeds at all - without a

>Things drones can't do: go fast enough to cross the sky in a blink, stop on a dime or turn sharp corners at jet speeds, travel at jet speeds at all - without an obvious and loud model jet engine, create slabs of light or opaque surfaces, block the stars behind them like a solid object Eh, if you have an LED screen in the sky, you can create the appearance of a lot of things.