[tiklvroz] cellular automata on edges

square lattice: 6 neighbors per edge.  inspired by seven segment displays.

neighbors are in two classes of 3, one for each endpoint.  next state can be a function of two variables (future post), the populations of each class.

square lattice with diagonals (chess king graph) allows signals to cross.

break each edge into two half-edges.  one endpoint only connects to the other half-edge.

or 3 sub-edges.  middle sub edge has only two neighbors.  this might be enough for signals to travel in directions with a head and tail, inspired by Wireworld cellular automaton.