At this moment, computer-generated skeletons are competing in a virtual race, running, hopping and jumping as far as they can before collapsing in an electronic heap. Meanwhile, in the real world, their coaches – teams of machine learning and artificial intelligence enthusiasts – are competing to see who can best train their skeletons to mimic those complex human movements. Perhaps the coaches are doing it for glory or prizes or fun, but the event’s creator has a serious end goal: making life better for kids with cerebral palsy.