Cybernetics
Type: Systems & Dynamics
Local HTML: cybernetics.html
Definition
The study of control and communication in systems — feedback loops, regulation, information flow. From Greek “kybernetes” (steersman).
Norbert Wiener (1948): Cybernetics is “the scientific study of control and communication in the animal and the machine.”
Why It Matters
AI Safety: How do you control a superintelligent system? Cybernetics provides the framework. Organizations: Management as control system. Feedback, adaptation, homeostasis. Biology: Bodies as self-regulating systems. Temperature, blood sugar, ecosystems. Society: Markets, democracies, cultures as information systems.
Core Concepts
| Concept | Description | Example |
|---|---|---|
| Feedback | Output affects input | Thermostat |
| Homeostasis | Maintain stable state | Body temperature |
| Control | Guide system to goal | Cruise control |
| Information | Reduce uncertainty | Sensor data |
| Entropy | Disorder, uncertainty | Noise in signal |
Types of Feedback
Negative feedback (stabilizing):
- Too hot → cool down
- Too fast → slow down
- Maintains equilibrium
Positive feedback (amplifying):
- Hotter → even hotter (runaway)
- More users → more value → more users (network effects)
- Can be good (growth) or bad (collapse)
Applications
- AI Alignment: Ensuring AI goals match human goals
- Management: Viable System Model (Stafford Beer)
- Ecology: Ecosystem regulation
- Economics: Market self-correction (or not)
Related Biases
- [[Reflexivity** — Observation changes system
- [[Normal Accidents** — Complex systems fail
- [[Illusion of Control** — Thinking we control what we don’t
Audio
Podcast episode: Cybernetics
Part of the Cognitive Bias Reference