SMRTR Science & EngineeringJan 13, 2026Less Wrong

The Reality of Wholes: Why the Universe Isn’t Just a Cellular Automaton

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Cellular automata simulate complex behaviors through simple rules applied to grid cells, inspiring theories that the universe operates as a massive computational system. However, this reductionist view faces a fundamental challenge: it cannot explain how genuine "wholes" emerge from their parts, such as consciousness from neurons or life from chemistry. While cellular automata can model certain patterns, they fall short of capturing the true emergent properties that define complex systems in our universe.

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