This guy is fantastic (real life Doc Brown) I don't really follow very easily what he's saying, but the reason I put it up here is because of how he moves. He's leaping out of his skin in the beginning, totally unexpectedly and very entertainingly. But in the middle he calms way down and is really still. Makes me think of all the talk about having different textures and rhythms in your animation.
* found by someone else I think, don't remember. Ted talks are awesome though