As far as I&#x27;m aware, Wolfram doesn&#x27;t think cellular automata underpin our physical universe; they&#x27;re just a very simple form of universal computation, which makes them interesting to explore.<p>He thinks the Universe is more like a graph of nodes and edges, with particles, interactions, spacetime, etc. emerging from the rewriting of simple patterns in the network <a href="http:&#x2F;&#x2F;blog.stephenwolfram.com&#x2F;2015&#x2F;12&#x2F;what-is-spacetime-really&#x2F;" rel="nofollow">http:&#x2F;&#x2F;blog.stephenwolfram.com&#x2F;2015&#x2F;12&#x2F;what-is-spacetime-rea...</a>