https://en.wikipedia.org/wiki/Puffer_train https://en.wikipedia.org/wiki/Puffer_train A pattern in Conway's Life that generates an infinite pattern of live cel

https://en.wikipedia.org/wiki/Puffer_train https://en.wikipedia.org/wiki/Puffer_train A pattern in Conway's Life that generates an infinite pattern of live cells. (it's a pattern that drives forward across the cellular automata universe, continuously puffing out permanently-live "smoke")