Answer to Question #41622 in Economics of Enterprise for lasisi
17. Ashby theorem formalizes a) the law of requisite variety ? b) the regularity of the potential effectiveness ? c) the law of proportionality ( harmony ) ? d) the capacity of the law , depending on the structure of the system or the nature of the interaction between its structural elements ?
Ashby theorem is a theorem conceived by Roger C. Conant and W. Ross Ashby that is central to cybernetics. It is stated that "every good regulator of a system must be a model of that system". Any regulator that is maximally successful and simple must be isomorphic with the system being regulated. This makes a model necessary. With regard to the brain, insofar as it is successful and efficient as a regulator for survival, it must proceed, in learning, by the formation of a model (or models) of its environment. The theorem is general enough to apply to all regulating and self-regulating or homeostatic systems.