At first I wondered how you sit down, then I realized that you ARE sitting down. Technology like this might cause us to rethink a lot of things. While the prototype probably has a ways to go before it becomes practical for people who are infirm (how do you take the legs on and off?) this sort of technology has the promise of keeping people active and fitter longer. We tend to think of assistive devices as things for people who are already disabled. But as we boomers age, a large market will emerge in helping people prolong relatively normal activity. I met a man using a Segway for this purpose. Games to improve cognitive function are another example of this application of technology. Could robot arms to reach those things on the top shelf be next?
As Forrest said, “From that day on, if I was ever going somewhere, I was running!”