The image shows a asynchronous graph rewrite automaton which tries to reduce Ackermann(4,4) (the picture name is ackermann_4_4_75steps.gif). The "Ackermann goo

The image shows a asynchronous graph rewrite automaton which tries to reduce Ackermann(4,4) (the picture name is ackermann_4_4_75steps.gif). The "Ackermann goo" is a speculation based on the look of that and the analogy between chemistry and async graph rewrite automata.