Moonwalkers give users a powered boost as they walkAlthough they may look like just another set of strap-on electric roller skates, the Moonwalkers are actually a bit different.Designed by Carnegie Mellon University spinoff company Shift Robotics, the Moonwalkers are currently the subject of a Kickstarter campaign.They can reportedly be attached to a wide variety of shoes, utilizing their adjustable straps and quick-release magnetic buckles.This also begs the question, will it be legal to use these on footpaths, given they are a powered device, or will antiquated laws like we have here in Australia require you to use these only on roads and shared paths?People didn't develop the tendency to walk because it required less energy to do while watching for predators or carrying loads?"