Here's a nice lecture by Carlo Rovelli on his development of Spin Foams with Lee Smolin. Great to see the intro to his lecture by Penrose:
https://livestream.com/oxuni/rovelli/videos/199493556 At time 41:33, you can check out how space is defined as the volume around a vertex. Steve Smith and some others have heard me wax incoherently about the potential that spacetime is the dual graph of the spin networks in much the same way a voronoi is a dual to a delaunay graph. _______________________________________________________________________ stephen.gue...@simtable.com <stephen.gue...@simtable.com> CEO, Simtable http://www.simtable.com 1600 Lena St #D1, Santa Fe, NM 87505 office: (505)995-0206 mobile: (505)577-5828 twitter: @simtable zoom.com/j/5055775828 On Wed, Apr 15, 2020 at 2:47 PM Marcus Daniels <mar...@snoutfarm.com> wrote: > https://arxiv.org/abs/gr-qc/9905087 > > On 4/15/20, 1:46 PM, "Friam on behalf of uǝlƃ ☣" < > friam-boun...@redfish.com on behalf of geprope...@gmail.com> wrote: > > Can you point to what you think Baez was doing that seems similar to > what Wolfram's doing? > > On 4/15/20 11:38 AM, Marcus Daniels wrote: > > Wasn’t John Baez doing this stuff in the late 90s? > > > -- > ☣ uǝlƃ > > .-. .- -. -.. --- -- -..-. -.. --- - ... -..-. .- -. -.. -..-. -.. .- > ... .... . ... > FRIAM Applied Complexity Group listserv > Zoom Fridays 9:30a-12p Mtn GMT-6 bit.ly/virtualfriam > unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com > archives: http://friam.471366.n2.nabble.com/ > FRIAM-COMIC http://friam-comic.blogspot.com/ > > > .-. .- -. -.. --- -- -..-. -.. --- - ... -..-. .- -. -.. -..-. -.. .- ... > .... . ... > FRIAM Applied Complexity Group listserv > Zoom Fridays 9:30a-12p Mtn GMT-6 bit.ly/virtualfriam > unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com > archives: http://friam.471366.n2.nabble.com/ > FRIAM-COMIC <http://friam.471366.n2.nabble.com/FRIAM-COMIC> > http://friam-comic.blogspot.com/ >
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