Thinking in Systems by Donella H. Meadows

Thinking in Systems by Donella H. Meadows

Great book about how to view the world and why we often miss the bigger picture. The answer is systems.

The Important Concepts

Balancing Feedback Loop

The facts:

Balancing feedback loops are goal-seeking or stablity-seeking. Each tries to keep a stock a ta given value or within a range of values. A balancing loop opposes whatever direction of change is imposed on the system. If you push a stock too far up, a balancing loop will try to pull it back down.

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Reinforcing Feedback Loop

The facts:

A reinforcing feedback loop [...] generates more input to a stock the more that is already there (and less input the less that is already there). A reinforcing feedback loop enhances whatever direction of change is imposed on it.

Reinforcing loops are found wherever a system element has the ability to reproduce itelf or to grow as a constant fraction of itself.

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