Is this real or just a "product vision" kind of video based on no concrete technology? If they have actually solved the hard problems involved in making this t

Is this real or just a "product vision" kind of video based on no concrete technology? If they have actually solved the hard problems involved in making this technology work, it's extremely cool. If they have not, it's somewhat akin to a video suggesting that they'll build technology to allow people to fly without any equipment, just by flapping their arms.