On Wed, 21 Nov 2007, Peter St. John wrote:

Speaking of octonions (ahem), has everyone read "An Exceptionally
Simple Theory of Everything"?
The wiki article is at
http://en.wikipedia.org/wiki/An_Exceptionally_Simple_Theory_of_Everything
and the ArXiv item, 31 pp PDF, I think worth skimming even if not
...any of several relevant difficult specialities...is at
http://arxiv.org/pdf/0711.0770
For those who care about uniting quantuum mechanics with general
relativity via 248-dimensional Exceptional Simple Lie Algebras. Really
it's a nice presentation, obviously more than a little esoteric for
almost anyone, but quite well presented for a quite general audience
all things considered. And that's a lot of all things to consider, I
admit.
Peter

Is this E8?  I'll check it out.  But my exposure to it so far convinces
me that it is a field dominated by serious, serious flakes...

It didn't used to be.  E8 is a universal covering group for a whole lot
of this and that, so in principle it CAN work, but IIRC there were
problems.  I don't know about insurmountable, but physics requires more
than just pretty pictures of elementary particle zoos.  One KNOWS one
can do that, because it is a covering group.

  rgb


On Nov 21, 2007 3:25 PM, Joe Landman <[EMAIL PROTECTED]> wrote:
Robert G. Brown wrote:

 A = B + CROSS_PRODUCT(C,D)

Ah but are A and B vectors or pseudovectors?  Just kidding...;-)

Quaternions ... :)



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