Langton's loops - Wikipedia

netomaton/demos/langtons_loops/README.md at master · lantunes/netomaton · GitHub

Von Neumann cellular automaton - Wikipedia

Langton's loops - Wikipedia

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Langton's Loops: The cellular automaton that copies itself

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File:CA3061-81k7.png - Wikipedia

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Chapter 3

File:Evoloop closeup.png - Wikipedia