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A “good regulator theorem” for embodied agents

Created by
  • Haebom

Author

Nathaniel Virgo, Martin Biehl, Manuel Baltieri, Matteo Capucci

Outline

This paper addresses the difficulty of generalizing Conant and Ashby's assertion that "a good regulator must be a model of the system," using examples from the field of artificial life. To overcome the limitations of existing theorems, we propose a new model concept that interprets an agent's behavior as "beliefs" and "updates" from the perspective of an observer. This provides a "model" of the system's environment, demonstrating its applicability to both classical control theory settings and internal state regulation. Seemingly counterexamples are resolved by interpreting the model as a simple case. The key point is that the model is not inherent to the system, but rather is imposed by an external observer.

Takeaways, Limitations

Takeaways: By extending the Conant and Ashby theorem, we offer a new perspective for explaining the regulatory mechanisms of various systems. We define the concept of a model more comprehensively by emphasizing the role of the observer. We present a new framework for understanding the regulatory behavior of artificial life systems.
Limitations: The model's dependence on observer interpretation may raise questions about its objectivity. The criteria for judging model simplicity may be unclear. It does not present a universal model applicable to all regulatory systems.
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