Technology is great when we all can benefit from it, not just the few!A flying hotel that never lands... perfect prision ... like in black mirror.Most inventions don't sell....some are pretty pointless for humans . Some are great .This should be retitled "inventions that will never be available to anyone because of their impracticality".The music is so repetitive that it almost made me watch something else. But I just hit mute for a few seconds between the mostly impractical inventions.