[peterweyand0]

The idea that cellular automaton can form a foundation for physics that mathematics can't seems incredibly unlikely. Mathematica is a useful program, but his claims are a bit over the top compared to the critiques from fellow scientists.

[sjg007]

Well all CAs are math so I am not sure what you mean here. CAs are basically state space in time models that may exhibit some general predictable behaviors that can be described by math.

[daneelsan]

I'm not sure why comments mention CA. His physics theory and the multicomputation stuff does not make use of CA's (at least no more than any other abstract machine).