Ohhh ... The "law of requisite variety" is actually something that exists. I had, for a long time, had a hunch that this is most likely true: as I thought of it, to effectively control a system, the controller's complexity has to be in the same order of magnitude as the system being controlled. Which IMHO is profound if you apply it to the world around you, and explains a few things.

https://en.wikipedia.org/wiki/Variety_(cybernetics)#Law_of_requisite_variety