Thanks, Fig 3 is literally just a blue grid on top of a red grid, which could still be generated by Zuse's cellular automata from the 60s (https://philpapers.org/archive/ZUSRR.pdf) whom I should also have mentioned. More valuable are the Poincare disks, which show a perspective on the graphs that cannot be simulated on a simple cellular automaton anymore, in accordance with Zuse's suspicion that cellular automata would become insufficient ultimately. The modern Wolfram hypergraph models could be highly useful to reproduce these types of isotropic-relativistic graphs and so forth.