I did reply, rather late, but in another topic:
Control systems act to reduce the effects of disturbances on inputs that they control. Control systems in environmental proximity inevitably disturb one another’s controlled inputs in the course of controlling their own. What is observed as collective control emerges as environmental stabilities which, over time, may come to be used within environmental feedback paths. Such environmental stabilities may themselves come to be perceived and their stable availability in feedback paths may then be a controlled perception by all or some of the engaged control systems. These may be established and persisted genetically or epigenetically across generations in an evolutionary time scale. To the extent this is so (as evidently in the electrochemical environments of neurons), collective control is baked in for a newly created control system in that environment.
Yes, there are analogies to the origin, evolution, learning, maintenance, and usages of language. There are important disanalogies too. Language is quite literally suspended in thin air among its users. (If no one spoke English all of our writings would be of significance only to scholars, like Old English or for that matter classical Latin and Greek.)
There is no separate controller that determines which neurochemicals are released or reabsorbed in which parts of the nervous system, and the synapses that release or reabsorb them are distributed throughout the nervous system. It is obvious to me that collective control is the conceptual tool for figuring out how it is done, determining what data are needed, and framing how to test, model, and demonstrate what is going on.