I also think that. But it appears we're both being downvoted for saying so.

I'm not sure I understand why? HN is usually pretty tolerant of healthy skepticism. And it's not as if we're saying "this feat is impossible, Boston Dynamics must be lying". We are (or at least I am) saying "the thing I'm looking at doesn't look real".

It looked fake to me immediately. Maybe just uncanny valley since the movements are not very human-like — I'm not sure. But the lighting on the machines looks all wrong to me (although the shadows do look accurate, and the audio also seems convincing).