I have not proved that the universe is, in fact, a digital computer and that it's capable of performing universal computation, but it's plausible that it is.
Seth LloydIt's also a reasonable scientific program to look at the dynamics of the standard model and to try to prove from that dynamics that it is computationally capable.
Seth LloydSome folks think life and technology and mind can keep expanding forever. Others say it can't. We are still not clear on that.
Seth Lloyd