Japanese researchers have created holograms that can be changed by human touch, called Fairy Lights, the new technology can be the future of human-machine interaction in 3 dimension. The holograms were made using femtosecond lasers, a laser that can excite physical matter to emit light in 3D form. The lasers can produce high-frequency pulses, from 1,000 to 200,000 pulses per second depending on the type of laser. Do watch the full demonstration video shared ahead.