"This is partly in answere to aother thread. I wish teachers would not say dancing is just walking"
If you had a greater experience of proper dance technique and efficient walking in non-dance settings, you would recognize the large similarities.
You cricisms though show your lack of understanding of either:
"Alex Moore went to great lengths to say we keep our foot in close contact with the floor"
This is an efficiency adapation, but you greatly over-estimate its impact as a difference. We pick up our feet higher when walking around mainly as a safety issue, because we often walk of surfaces that are not nearly as nice as a dance floor. I kept tripping at work after they refinished the floors, because I don't pick my feet up any higher than needed, and the new finish would grab my street shoes. Picking up the feet higher is wasteful, but safer.
"by pointing out that the foot starts as a ball and then becomes a heel on a walk forward going right to the tip of the rear foot which then will become a ball."
This happens in any efficient walk. You just notice it because your attention has been called to it, and because you have a mistaken idea as to why it's done:
"Work this out for yourselves. Lift the right foot to knee high and step forward. You have no control untill the foot touches the floor. Bring the foot down to ankle height and step. Again untill the foot touches the floor we are standing on one leg."
Yes, that's exactly how millions of years of evolution have prepared us to move. We indeed do not have much control when standing on one foot, but we've had millions of years to develop brains that can send our body along a carefully aimed path. The result is that we have as much control while standing on one foot as we ordinarily need - for walking or for dancing.
"Come down to one inch above the floor and repeat. Again there is no control untill the foot touches down. Which is dead opposite to the technique book."
That's where you are wrong. The moving foot stays very close to the floot in dancing, it might even touch incidentally - but is is not bearing any weight, not even the weight of the foot itself. And it does not provide any stability assistance. If you are using your moving foot for balance, you are dancing VERY VERY BADLY.
At most, having the mass of hte moving foot near the floor lessens its ability to unbalance your body. But if you are relying on pressure from the moving foot to balance, something is SERIOUSLY WRONG with the aim of your movement.
Learn to aim... don't aim poorly and then fix it by using your moving foot as a CRUTCH.
