The walker (or ouroboros) creature traversing a tree, asynchronously, by a random rewrite algorithm.
Done with the mol file bigpred_tree.mol and with the quiner script from the chemlambda repository. Click on the "fork me" badge to get to the repository and see how to use it in the README.md. I have changed the colour of FI nodes from red_col (presently red) to out_col (presently magenta).