The essence of systems thinking: Every persistent biological or cultural structure exists because of a positive feedback loop. Sometimes it’s hard to see. But to understand the structure, you must understand the loop.
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I had the same response to original tweet. Positive feedback = errors are amplified, driving a system to saturation at limits (eg animal reproduction, no predation). Negative feedback = system finds equilibrium (eg add in predators).
I think that’s right, but what I was thinking is that positive feedback loops are the more primary force (because until they do their work, there’s nothing to stabilize with negative feedback)
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There is only one positive feedback loop: self-replication.
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an example of negative feedback is pain, the most basic emotion, experienced even by single-cell organisms.
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You seem to be reaching for the concept of gain in the formalism often used to model feedback loops rather than the sign of the gain itself. https://www.tutorialspoint.com/control_systems/control_systems_feedback.htm …
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Sounds like you would agree with CS Holling's diagram of systems growing and then stabilising: https://www.resalliance.org/adaptive-cycle
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Is there a book about this that you’d recommend?
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Positive and negative are just two sides of the same coin. Need both to build and sustain the system/loop.
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I wonder. Positive F.L.'s don't have to be primary if negative F.L.'s are imperfect (which they always are). The imperfection creates externalities which need more stabilizing. e.g. Dept of Defense (negative F.L.: "protect borders") -> military-industrial complex (positive F.L.)
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Do you reckon businesses are sometimes like this? Innovation and working practices reined in by public opinion and regulation when the sacrifice in pursuit of success becomes too ridiculous?
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