At the Caltech Alumni Seminar day last May I attended a presentation where a professor described that latest video from Boston Dynamics showing their robot do a back flip. He then showed multiple videos of the same robot failing at that and similar tasks that Boston Dynamics had chosen not to share with the press. The one that sticks in my memory was the complete inability of the robot to handle uneven or soft terrain. Standing on sand, the robot could not even complete a single step without falling over. They have a long way to go to make it handle realistic conditions.