Excellent points, especially the part about the constrained degrees of freedom in our actual interactions with the world. To give another example: the human han

Excellent points, especially the part about the constrained degrees of freedom in our actual interactions with the world. To give another example: the human hand has somewhere upwards of 20 degrees of freedom. Yet except in a few situations that require lots of training (like touch typing or playing musical instruments) the movements of the hand are limited to a small number of stereotyped poses-- a power grip for holding a coffee mug or a suitcase, a pose bringing the thumb to forefinger, a handshake pose, a thumbs-up pose, a baseball grip, etc. And that's not even getting into the physical limitations of the hand.