I love this part: "Feynman had a proposed solution to the anisotropy problem which he attempted (without success) to work out in detail. His notion was that th

I love this part: "Feynman had a proposed solution to the anisotropy problem which he attempted (without success) to work out in detail. His notion was that the underlying automata, rather than being connected in a regular lattice like a grid or a pattern of hexagons, might be randomly connected. Waves propagating through this medium would, on the average, propagate at the same rate in every direction."