Fig 7. A system of 55 interconnected NOR micro elements viewed at several different grain sizes, with all elements in the ON state.

The micro elements form 5 interconnected groups, with each group arranged according to Fig 6. The systems are arranged with micro elements on the far left and black-box elements of increasing spatial grain to the right. The legend on the right specifies the input-output function of each element. Each of the three systems on the top row is a local maximum of cause-effect power, corresponding to the three spatiotemporal grains shown in Fig 6. Shown in the bottom row are two representative examples of the many systems with Φ = 0 at spatial grains between the local maxima.