Seems like physical robots are now entering the so-called "uncanny valley" reached years ago by special effects and video game artists: the thing looks real, but as soon as it starts to move, the deepest recesses of our subconscious at once alert us that it is, in fact, nothing more than a futile and imperfect facsimile of life.

That said, the suggestion that this could be a real human acting as a robot is definitely plausible. And that, on its own, is a remarkable accomplishment, really.