Rick’s post likely reflects the unspoken (unPosted?) thoughts of most viewers here. Still, might as well throw a few ramblings at the topic since not much else is going on.
Methinks it is
true that one can carry a given external weight
in any number of ways, but to imply that the supporting mechanism for such weight should
be in a given location in relation to its support is an expression of opinion not fact.
Modern technologically advanced engineering does all manner of creative things to support 'weight'. Google up "Tensegrity" sometime - It’s a minimalist form of a supporting structure which (in a way) imitates the multiple means of structural support internal to ourselves. Such a structure indirectly creates a rigid component between its Base-of-Support and its CM (and its topmost element for that matter). It becomes rigid only in its overall form.
Here's location for a few cool images:http://www.bergen.org/AAST/Projects/...ensegrity1.htm
Most of us will quickly discount any suggestion that external weight must be carried from above to be efficient or otherwise 'Natural and Proper'. People have carried heavy external weights on top of their heads for centuries - a most comfortable and efficient way to do it. As a 10 year old, I used to carry 80lb burlap-sacks of feed up a long hill to the barn this way. Worked great (thank you National Geographic magazine!).
As to internal weight, my weight seems to migrate to where it pleases. It's 'carried' based on my skeletal structure - not my intent nor personal preference. My intent and preference have absolutely nothing to do with it. My body mass is where it is, and only more exercise will satisfy my preferences.
That said, I think it is
true that we can choose to perceive
a given location anywhere in our body and focus our perceptions on that location for... well, whatever reasons we chose... Maybe this is the unclear concept that TCS is actually referring to.
While skiing, I can choose to focus attention primarily on the base of my feet - to more clearly sense the pressure variations under them in response to my upper body and limb movements. In doing this I’m more likely to move my upper body (CM) and upper limbs into locations that bring about my intended and desired foot-pressure feedback.
I could choose instead to focus primarily on a location somewhere within my core (perhaps a location close to my actual CM). In that case I’ll tend to manipulate my core muscles and extremities (feet, legs, arms and head) into forms and locations that bring about my intended and desired CM-location (and its flow
if that’s part of my intent).
Perhaps it is a focus on the perception of where and how our CM is moving
that TCS alludes to rather than some magical force to move it around that originates from within?
We could also choose to focus on some other location - like our head or hands. That's pretty much what the "Hold a Tray of Glasses Full of Water" exercise is all about - causing one to focus their attention on the stable movement of the imagined tray to the exclusion of other things. Gets them to move the rest of their body as needed to accommodate the stable flow of the tray.
Yep, gotta agree on the language thing. But, I'm not sure it's always an unintended error
when some people make use of their own terms or their own peculiar translation of commonly understood terms.
Sometimes people attempt a deliberate coercion of a community’s language into their own language-domain as a means of discussion control and elevation of self-importance. (Not that I’ve ever done that myself…