O, btw, I grew up in the country. Spent several years on the sheep farm. Interestingly, the herd dogs use the same "signal" mechanism to move sheep. Rather than run around and bark, they get in "predator" pose and the sheep move accordingly.
Interesting to watch low-power energy, i.e. "signals", accomplish work.
Now this is a completely irrelevant aside, but I remember hearing about a party at a house with three dogs, mostly in one room. A guest left to use the bathroom, and when she came back, she could see that everyone was packed in a neat group in the center of the room with the dogs patrolling and nudging the strays back in.
That is a neat story about the dogs using the predator pose. Thanks.
Sweet, there's another Bloggingheads episode with Eliezer.
Bloggingheads: Robert Wright and Eliezer Yudkowsky: Science Saturday: Purposes and Futures