If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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From Body Learning by Michael Gelb, while he's quoting another book in the middle. I know there are a handful of other LWers out there who do Alexander, but it's a very interesting technique because it seems useful to know (I wouldn't be surprised if it's the inspiration for a lot of the skillful movement stuff in Dune, which made an impression on me as a child) but useless to discuss: there's not really a way to teach it except by touch, which doesn't scale very well.
Alexander Technique is one somatic technique of many. All of them lead to skillful movement and without background knowledge there no reason to assume that a specific technique inspired Dune.
I don't think that discussing it is inherently impossible. It just hard. It's even more hard when the people you are talking with don't have the background to understand the basic claims and then want peer reviewed research for every claim.
If you want to discuss issues around shifting around your center of gravity than the people you talk to have to know what you mean with shifting around one's center of gravity and it's not something that can be easily done via a blog post.