Simulated Factories (Potential for nearly infinite factory)

[lablet1]

In the past I played a mod (factory modules) that allowed you to create areas of your factory that were identical, so that instead of the game having to simulate both chunks, it only simulated one, then mirrored the inputs and outputs between the two. This should be much simpler to do if the simulated part was its own plane... as is enabled by factorissimo.