Every Good Regulator of a System Must Be a Model of That System.¶
CONANT, R. C., & ROSS ASHBY, W. (1970). Every Good Regulator of a System Must Be a Model of That System. International Journal of Systems Science, 1(2), 89-97.
Cited by¶
5 citations across 5 artifacts.
Each citation links to the sentence it supports in the citing article.
Primes¶
- Feedback
- The loop's behavior is only as trustworthy as its reference
This sourceProves the good-regulator theorem: any maximally simple, maximally successful regulator must be isomorphic to (model) the system it regulates - the theoretical basis for the claim that a loop is only as trustworthy as the reference/model it controls toward.
Supported in partVerified against the publisher's abstract
Abstract states the good-regulator theorem: a maximally successful, simple regulator must model the regulated system — it supports the model, not the reference, half of the claim.
“In this paper a theorem is presented which shows, under very broad conditions, that any regulator that is maximally both successful and simple must be isomorphic with the system being regulated.”
- The loop's behavior is only as trustworthy as its reference
- Good Regulator Theorem
- The good regulator theorem (Conant and Ashby, 1970) is the formal result that every effective regulator of a system must be — or must contain — a model of that system.
This sourceProves the good regulator theorem: any regulator that is maximally both successful and simple must be isomorphic to a model of the system it regulates; ported across control, neuroscience, organizations, and AI.
Supported in partVerified against the publisher's abstract
The abstract states the theorem's core - a maximally successful and simple regulator must be isomorphic with the system regulated, so making a model is necessary - but the claim's 'every effective regulator' is broader than that.
“In this paper a theorem is presented which shows, under very broad conditions, that any regulator that is maximally both successful and simple must be isomorphic with the system being regulated.”
- The good regulator theorem (Conant and Ashby, 1970) is the formal result that every effective regulator of a system must be — or must contain — a model of that system.
- Monitoring
- Establishing what "normal" looks like, recognizing deviation, managing alert fatigue, and closing the gap between detection and action are universal problems, as Conant and Ashby (1970) prove in their good-regulator theorem: every effective regulator must contain a model of the system it watches.
This sourceProves the good-regulator theorem: any maximally simple and successful regulator must be isomorphic to (contain a model of) the system it regulates; theoretical basis for baseline modeling in monitoring.
Supported in partVerified against the publisher's abstract
The abstract states that a regulator which is maximally both successful and simple must be isomorphic with the system it regulates; it does not address baselines, alert fatigue, or detection-to-action gaps.
“any regulator that is maximally both successful and simple must be isomorphic with the system being regulated”
- Establishing what "normal" looks like, recognizing deviation, managing alert fatigue, and closing the gap between detection and action are universal problems, as Conant and Ashby (1970) prove in their good-regulator theorem: every effective regulator must contain a model of the system it watches.
- Requisite Variety
- the regulator-state-space size lower bound
This sourceProves the good-regulator theorem: any maximally simple and successful regulator must be isomorphic to (contain a model of) the system it regulates; theoretical basis for baseline modeling in monitoring.
Supported in partVerified against the publisher's abstract
The abstract's theorem — a maximally successful and simple regulator must be isomorphic with the system it regulates — constrains regulator structure, but states no state-space size bound.
“in this paper a theorem is presented which shows, under very broad conditions, that any regulator that is maximally both successful and simple must be isomorphic with the system being regulated”
- the regulator-state-space size lower bound
- Ultra-Stability (Ashby's Concept)
- A physiologist studying temperature regulation, an engineer designing a robust control system, and an organizational manager building adaptive capacity are all working with ultra-stability concepts: identifying essential variables, understanding disturbances, and ensuring regulatory mechanisms have sufficient variety to maintain bounds
This sourceProves the good-regulator theorem: any maximally simple and successful regulator must be isomorphic to (contain a model of) the system it regulates; theoretical basis for baseline modeling in monitoring.
- A physiologist studying temperature regulation, an engineer designing a robust control system, and an organizational manager building adaptive capacity are all working with ultra-stability concepts: identifying essential variables, understanding disturbances, and ensuring regulatory mechanisms have sufficient variety to maintain bounds
Verification¶
Does it exist? Confirmed. This work's DOI resolves to a registered record, which fixes its identity. That is all it fixes.
Does it back the claim? Read against the text for 4 of 5 citations: 4 supported in part. Each verdict is shown under its citation below, with what in the work backs the sentence.
Support is checked per citation rather than per work — the same source can be cited soundly in one article and wrongly in another. Per-citation recording began recently, so a citation with no recorded check is a gap in the record rather than evidence it went unchecked.
See how references were verified.
Registry ID ref:b60687fe9b62 · see in the full table