Well, if M is for motive, then it's still just M-theory. ;)
Lol, kneemo. But Arkani-Hamed started with T theory (for T just a new letter) ... and ended the talk with P theory, where P stands for polytope!
And when discussing cyclic structures on Grassmannians, he refers to Goncharov's papers. OMG, check out THIS and this ...
"Gravity + QM = spacetime is doomed"Can it be said clearer? By necessity it means a varying speed of light or ZEO.
Ulla, Nima is a very clear speaker, and this is one of his better introductory talks. As for the varying c ... probably they do not realise this yet. There was a discussion session, but it seems it was private.
He had a picture of complex harder space that went in between x,y-lines. Could it be the Lie-algebra? Then maybe Lisi's E8 can fit into this?
The geometry, as far as I recall, seemed to be determined by the placement of internal twistor propogators. This was at least the case with polygon triangulation equivalence classes.
So you mean that they do know about c variation, in some sense? Yes, but that is a very different thing from understanding the physical consequences, such as supernovae redshifts. Ulla, Lisi did not invent the Lie group E8.
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