Two cybernetic systems are involved in human language and thought. The first system is the human brain. It creates models of reality whose material body is the nerve nets, and which we therefore call neuronal models. The second system is language. Its functioning is linguistic activity in society.
Linguistic activity creates models of reality whose material body consists of linguistic objects.
The two systems are tightly interrelated. Some substructures in our brain are representations of the states of the world. Thus while we can regard small numbers, like two or three, as neuronal concepts because we immediately recognize them, bigger numbers, like 137, can function only using some external to the brain representations. We cannot throw away the concepts of the lower levels even if we wished to, because then we would have no means to link theories to observable facts. Predictions produced by the higher levels are formulated in terms of the lower levels.