>>11731484He's basically saying he's proven our universe functions as a 3 dimensional cellular automata. Like a giant 3D version of Conway's game of life, but with some varies rules.
Because it's a cellular automata, you can create "other" variations of cellular automatas, examine them, and if you discover a new rules that can be applies to all automatas, then they can be applies to physics in our universe as well.
It's a new approach to discovering new physics. Instead of trying to examine our own universe, we create micro universes and examine them instead.