The Birthday of John von Neumann (Again?) – His Contribution to Self‑Replication

Von Neumann’s birthday is Dec 28? Actually Dec 28, 1903. But let’s use Oct 29 for a different von Neumann topic: cellular automata and self‑replication. He designed a 29‑state cellular automaton (the ‘von Neumann universal constructor’) that could reproduce itself. This was the mathematical model for self‑reproducing machines, later inspiring the study of artificial life and the concept of ‘von Neumann probes’ (spacecraft that replicate). His work on complexity and automata is the foundation of modern evolutionary algorithms and artificial life.