My quirky title, "Wittgenstein in a Tetrahedron" relates to recent posts sewn on this list. The "tetrahedron" whereof I speak is simply a network (or graph) of four characters: Ludwig Wittgenstein, Donald Coxeter, Bucky Fuller and myself (Kirby Urner). Of course it seems highly arrogant of me to connect myself as a dot to this august triangle, as if to imply I'm a part of some inner circle meritocracy. That's not my intent. My role is as an observer or commentator, the astronomer looking at a 3-star constellation. I'm preferring to explicitly include myself as an observer, verus pretending to some "objective voice of history". I'm more a "new journalism" fan, and/or fan of Kierkegaard's 'Concluding Unscientific Postscript'. Put another way: the subjective viewpoint should be acknowledged, not get away with disguising itself as some "overvoice" that narrates a documentary as some "voice of god" "giant corporation" "party" or "central committee" (to cite my "music of authority" investigation, not unlike Nietzsche's "will to power" investigation). <lore> I was recently quoting to this list from the Siobhan Roberts bio of Donald Coxeter (title: The King of Infinite Space). Donald Coxeter was one of the privileged few who got to be in on the Blue Book experience. The group actually used his chambers, even after he dropped out. Philosophy was not really his bag. He went on to become the premier geometer of the 20th century. So that's some of the *Coxeter-Wittgenstein* edge of the triangle. //www.freelists.org/post/wittrsamr/re-Blue-Book-student-Coxeter-other-overlaps Aspects of the *Coxeter-Fuller* relationship likewise chronicled in the Roberts book, plus I've seen some of the primary materials. In my view, Fuller was less a geometer than a philosopher, and Coxeter's impatience with Fuller's overblown language and opinion of himself (as Coxeter saw it) was not all that different, in kind, from his impatience with Wittgenstein's contribution (which is not to conflate Wittgenstein's philo with Fuller's of course). *Fuller-Wittgenstein*: this is a weak link until I come along and make the connection. E.J. Applewhite, Fuller's chief collaborator on the Synergetics magnum opus said he liked the link, while leaving it up to me to pioneer it. I'm tempted to interject some long essay at this juncture, but to be brief: Fuller is somewhat "post linguistic turn" in his awareness of language as a tool, and he deliberately invents his own language within which to spin his meanings (not that he's the only philosopher to try this -- one could argue that's one of the hallarks of being a philosopher (but then would Freud or BF Skinner qualify as philosphers then, as inventors of "new ways of talking"?)). To what extent is a philosophy able to weave its own internal logic and/or grammar? The TLP and PI are both implicitly answers to that question, as both have their own cohesiveness at the risk of imploding to become private languages (yet avoid this fate). Per earlier dialog with JPDeMouy, I've been trying to make "tetrahedral mensuration" more philosophically acceptable to math teachers. One of Fuller's chief discoveries, and a hallmark of his philosophy, is how easy mnemonics might be developed if starting with a regular tetrahedron as volumetric unity. Yet do we dare erect this tent in a Euclidean context? What rules are we breaking? Are there axioms at stake? These are somewhat foundational issues, taking us to Wittgenstein's Remarks on the Foundations of Mathematics as a pontential resource (more substance for the Fuller-Wittgenstein edge). //www.freelists.org/post/wittrsamr/help-the-math-teachers,1 Back to me and my role as commentator: having studied Fuller's philosophy more than most, I found myself growing impatient with the Wikipedia entry on Fuller's Synergetics. Not even the basics of the philosophy were being shared. Would some university philosophy department come to the rescue? Of course not, as we all know that Synergetics is not assigned reading in any university philosophy department. There's no army of grad students out there wanting to shore up a Wikipedia entry on anything so currently obscure and esoteric. http://www.grunch.net/synergetics/fieser.html You will note that I make no mention of Wittgenstein on this Wikipedia page, which is of course completely appropriate. That's all in my own head (notwithstanding the facts of the matter). However, I consider this list an appropriate place to archive some of my considerations regarding the lay of the land. I'm seeing a triangle and writing about it, hoping others might want to add their own gloss (why should I have all the fun?). http://en.wikipedia.org/wiki/Synergetics_(Fuller) Tetrahedral mensuration is admittedly off beat, but it's not so kooky as some may suppose. Nor is Fuller's language as opaque as some would make out. We're talking about some alien language games is all, internally consistent enough to be considered rule-following. Or not? Understanding means following some of the same rules oneself. But at what price? Does coming to understand X mean abandoning one's understanding of Y? When it comes to mathematics, many axioms and definitions are feasible. Many sandcastles share the same beach. Not every combination of ideologies is non-volatile however. Following one set of rules may mean breaking others. Perhaps we should have more discussion of expressions of understanding </lore> Kirby