As far as I can tell, Wolfram has not invented a model of physics at all; he has invented a notation for talking about causal systems. It's not clear to me that

As far as I can tell, Wolfram has not invented a model of physics at all; he has invented a notation for talking about causal systems. It's not clear to me that his "hypergraph" imposes any constraints on what can be encoded. This at once makes it intriguing from a mathematical perspective, and completely useless as a physics theory, in the same way that epicycles can model a planet with an orbit shaped like Homer Simpson's head. I am not surprised that Wolfram thinks FTL is possible - the real question is, is there anything he thinks is impossible?