A simple 1-D Cellular Automaton I made while having a break from that infernal ALU. Each Cell is essentially a 3-Bit Decoder with only some of its outputs (the ones that correspond to ON state in the Automaton rules) OR's together and output to the panel on top. The inputs are received from the 3 adjacent cells in the previous rows. I would not recommend pulsing this device as it will likely cause a lot of lag.

*Note: The schematic file contains the entire Automaton as shown in the Image, but each cell is self contained so cells can be added and removed without damaging the overall device.