Exoskeletons are not a new concept, by any means. But technological advances in the past decade have helped bring them to a much more realistic place. Which is to say, they now exist and are being used to help people suffering from paralysis to walk again. These incredible devices aren't quite ready for mass consumption yet, but we're getting so much closer. By the time this generation reaches old age and would typically require canes or walkers, we'll probably just be hopping around in our tiny lightweight exoskeleton suits instead.
But don't take my word for it. Watch the video, it's pretty amazing.