Paul:
I was pretty sure you would would be well acquainted with the field. My post was addressed primarily to those who are not (yet) so well informed. That’s why I took care to include easily accessible links to alternative theories.
For my part, Wolfram may well be on to something useful but he is a very long way from a theory of everything and I suspect that he agrees with me. My suspicion is that a paradigm shift will be needed for a successful merger between quantum fields and GR as a set of functions over a 1+3 dimensional continuum. The shift is likely to be as profound and disruptive as that which separates Newtonian/Galilean mechanics and quantum field theory as descriptions of the motions of particles.
FWIW, Stephen and I have known each other since 1982 and still keep in touch occasionally.