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John Riggs wrote:
a moving tetrahedron can adjust its dynamics in response to varying forces. I agree, the tensegrity concept has some potential, even if as a way of logically discussing the concepts.
I think the dynamic element has to be there in the sense the human tensegrity unit has a lot of weaknesses. As such, points of unbalancing are easily exploited. An adapting tensegrity on the other hand has the potential to be stronger if the sensitivity of the practitioner is such that adjustments can be made.
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Well, try this experiment:
Stand in a balanced and relaxed right-foot-forward stance, facing forward. Have someone push with a few pounds of force against the right side of the ribcage, toward the direction the left foot is in, pushing slightly downard, but almost horizontal. Relax the lumbar-spine muscles and the knees. Let the left foot and leg try to take 100% responsibility for the force. OK then let the person walk around behind you and slowly push on the back side of the left-half of the ribcage, toward the direction of the front foot. Try to relax and let the front foot/leg take full responsibility for the push. Have then go around and push lightly and slowly a number of times until you don't have to move a hair in order to change which foot is accepting the push.
As you get more and more used to it, you can dispense with the partner and mentally change the "path to the ground" as you will it. With more practice, you can ground a push from any side. After a lot of practice, the potential to ground almost any incoming force is instantaneous. ((If you add the ability to bring weight wherever and whenever you want it instantaneously, you are effective "extending ki" at all times)).
OK, so my point is that if we look at a human as a tensegrity structure as having the ability to almost instantly manipulate forces within the structure by use of the "mind", there's less need for the "moving" part you mentioned. Adjustments, both offensive and defensive, are made by the mind-body skill.
FWIW
Mike