Tech firm develops shoes that let you walk at the pace of a runAn American jet engineer invented Moonwalkers that let you stroll around at speeds of up to 7mph.Made by Shift Robotics, the idea occurred to founder Xunjie Zhang five years ago after he was almost knocked off his scooter by a car and decided to walk to work instead.But the real innovation is including artificial intelligence algorithms that analyse and adapt to a user's gait, making the Moonwalkers an "extension of people's legs".Moonwalkers are expected to cost $1,399 (£1,213) when they go on sale next year but are available cheaper on Shift's Kickstarter page, which has so far raised over £99,000.For more on science and technology, explore the future with Sky News at Big Ideas Live 2022."