# Edwin Roger Banks > **Machine-Evolution Nexus:** [[articles/Digital Darwinism and the Invisible World of Machine Evolution|Digital Darwinism and the Invisible World of Machine Evolution]] places this node within the history and governance of substrate-independent evolution. **Domain:** Computer Science / Cellular Automata **Doc Type:** Canonical Wiki Node **Maturity:** Developed ## Definition Edwin Roger Banks was a computer scientist whose 1971 MIT thesis developed a four-state cellular automaton capable of universal computation. ## Nexus Context Banks’s result forms the article’s counterpoint to Langton: computation without self-reproduction versus reproduction without universal computation. ## Evidence Boundary The pairing demonstrates logical separability, not that computation equals human intelligence or that reproduction equals life. ## Relationships [[wiki/Universal Computation|Universal Computation]], [[wiki/Cellular Automata|Cellular Automata]], [[wiki/Christopher Langton|Christopher Langton]], [[wiki/Intelligence|Intelligence]] ## Sources / Provenance - Banks, _Information Processing and Transmission in Cellular Automata_, MIT PhD thesis (1971).