john von neumann fit articles category life block cellular automaton cellular automaton cellular image processing codd cellular automaton conway game life day night name generally speaking category appears divided examples cellular automata immigration quadlife rule cellular automaton terms related cellular automata garden eden pattern gun oscillator extent might best divide category two subcategories find category however people contributed cellular automata regardless distinction however glad contribute nice helped possibly create subcategory scientists made major contribution cellular automata preference shorter name come one category place von neumann tell think