Their algorithm uses a sequence of four slightly spaced out frames as its state. So it has a memory, but a very short one. It could probably solve a maze quite

Their algorithm uses a sequence of four slightly spaced out frames as its state. So it has a memory, but a very short one. It could probably solve a maze quite easily if the entire maze fit on screen. That problem requires no memory. If it had to make decisions based on information not present on screen, it would fail.