Recent content by John G

The use of von Neumann hyperfinite factors/Bott periodicity and conformal/complex structures sounds like Tony Smith's idea for linking Armand Wyler's math for the fine structure constant to diffusion equations in an 8-dim Kaluza Klein spacetime.

You relating the worldsheet to Feynman path integral wordlines reminded me of years ago when you mentioned on Woit's blog that there's a deep relation between the worldsheet and path integrals. Tony Smith was in that conversation and U(N) gauge theory is the string theory-like part of Smith's...

https://en.wikipedia.org/wiki/D-brane The zero-mass states in the open-string particle spectrum for a system of N coincident D-branes yields a set of interacting quantum fields which is exactly a U(N) gauge theory. (The string theory does contain other interactions, but they are only detectable...

After a quick look at that Witten Space stuff about the closest thing Tony does to that is to calculate a Weinberg angle while calculating weak boson masses. Tony starts with a Hopf fibration of S3 for this. For Tony, the required thing for SU(3)xSU(2)xU(1) is that there are 4 quantum...

Tony is talking from the point of view of his model which like Garrett Lisi's uses two D4s from a split E8 for bosons.

Sounds close to what Tony Smith does. From Smith:

Obviously something very different could happen at/above the Planck scale (where quantum field theory and relativity break down). Also something very different could happen if you add consciousness into your theory. I personally think math can still handle the Planck scale and consciousness...

Via Gödel, a physics theory of course could still be a true theory that does correspond to the natural numbers even if you can't prove it.

Obviously Lisi and Smith themselves wouldn't be interested in spinor fermions via supercharges but I have run into a couple people interested in Tony's ideas in a superstring context. Tony may not be interested in a 14 64 so(7,7)+1 64 14 grading for a T-duality inspired 32x2=64-dim D7 spinor...

Rather than: This from Tony Smith I think is better if you like Tony and Lisi think Triality is important: At E6 you can orbifold with the spinors to get fermions and via Tony you have an F4 8+8+8 Triality plus 2 (F4 to E6) = 26-dim bosonic string (no supersymmetry needed). Going to E7...

Tony does this kind of thing with a 4-dim hyperdiamond Feynman Checkerboard. The "foam" of the Checkerboard is the Clifford Algebra 8-fold periodicity where you can represent any sized Clifford Algebra as Cl(8)xCl(8)xCl(8)... Tony and John Baez had once agreed that the Lorentzian Leech...

It would be nice to get the Pioneer anomaly well studied to check it against predictions. I personally think photon decay experiments are messed up so it would be nice to see that looked at to check against predictions. Standard model (force strengths and tree level mass) and neutrino (one...

Historically anyways, Tony did much like what Garrett did and started with gravity down at the D2 level. He originally had F4 at the highest level before going to E6 so his spaces could be complex instead of just real. He then made it up to E7 and E8.

You can go up to D3-grav and D3-EWS, that gets you gravity translations (and conformal transformations/dilation) plus a group with the strong/color bosons. I think though you still want the big group with triality in order to have one group from which you can get the two D3s. The big group...

http://www.space.com/scienceastronomy/080229- spacecraft -anomaly.html Seems like a job for conformal gravity or as I said it in another forum, "conformal dark energy unimodular relativity". Are you listening, David Finkelstein? Grumble, grumble.