Every single time that real scientists have modeled a golf swing, in 2D or 3D, and a possible parameter was moving the center, whether to optimize for power or a flat spot, or anything worthwhile, the center moves. Every time.........so why all the fascination with a non-moving center??
Sorry if I'm being dense, or pedantic, but I don't understand this. Isn't the first sentence circular? To me, this reads as "Whenever scientists have modeled a swing, in which something moves the center, the center moves."
Can't really argue with that. But it's entirely consistent with "Whenever scientists have modeled a swing in which nothing moves the center, the center stays put."
If the intention was to say:
"Every single time that scientists have modeled a real, successful, golf swing - the center has moved."; or,
"Every single time that scientists have built a model swing and optimised for anything of practical value, the center has moved.";
then I would understand better what this is about.
As for the "fascination with non-moving centers" - if I had to guess an explanation, I'd start with an estimate of whether the average hacker's head appears to move more or less during the swing than that of a pro. I'm not saying that cause and effect don't get a bit muddled that way - but if Brian's question is serious, rather than rhetorical (yeah, I think so too...) that's where I'd start.
However, just for the sake of argument, here's something interesting I read and have retyped (not cut and pasted) for the forum's pleasure:
"...habit simplifies the movements required to achieve a given result, makes them more accurate and diminishes fatigue.
The beginner at the piano not only moves his finger up and down to depress the key, he moves the whole hand, the forearm, even the entire body,
especially moving its least rigid part, the head, as if he would press down the key with that too. "
and also
"[as a result of practice] the more easily the movement occurs, the slighter is the stimulus required to set it up; and the slighter the stimulus is, the more its effect is confined..."
That's from William James' chapter on Habit in his book The Principles of Psychology. Please don't ask me whether this counts as real science though...