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Feedback Loop

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A Feedback Loop exists when the outputs of a System affect the inputs, i.e. when outflow from a Stock influences inflow.

A Balancing Feedback Loop exists when a goal is targeted, towards which the stock (volume/amount) strives- potentially alternating between too high and too low. This is called goal-seeking or balance-seeking or equilibrating. Examples are: temperature (of a hot cup of tea) equalizing (with room temperature)

A Reinforcing Feedback Loop exits when the outflow increases the inflow (or less outflow decreases the inflow). Examples are: interest on money, population growth, fuller bucket with whole draining faster than emptier, …

Competing Loops introduce complex or unexpected behavior.