Evidence review · grain
FEEDBACK / CYBERNETICS / HOMEOSTASIS
System notes
A controller must match the complexity of what it controls (requisite variety). Too simple fails; too complex wastes energy.
Negative feedback reduces error; positive feedback amplifies it. Runaway systems carry the seeds of their own end.
The universe corrects itself. Feedback is the engine of every stable thing you see.
Feedback is not the only pattern. A crystal has no feedback loop; it is stable by symmetry, not by control.
Not all feedback is virtuous. The pattern is neutral; the set point is where morality lives. Broken set points produce evil loops.
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Evidence ledger 8 · tier-ranked · API
system
A controller must match the complexity of what it controls (requisite variety). Too simple fails; too complex wastes energy.
sources: ashby-1956
system
Negative feedback reduces error; positive feedback amplifies it. Runaway systems carry the seeds of their own end.
sources: ashby-1956, wiener-1948
system
The universe corrects itself. Feedback is the engine of every stable thing you see.
sources: wiener-1948, ashby-1956
system
Feedback is not the only pattern. A crystal has no feedback loop; it is stable by symmetry, not by control.
sources: noether-1918
system
Not all feedback is virtuous. The pattern is neutral; the set point is where morality lives. Broken set points produce evil loops.
sources: ashby-1956, ostrom-1990
3 more ranked claims
speculative0.75
All living control is a loop (circular causality). Linear causality is a myth.
sources: maturana-1980, wiener-1948
speculative0.65
Climate feedback is contested: we do not know whether positive feedback (ice-albedo) or negative feedback (clouds, vegetation) will dominate.
mechanistic0.30
Cybernetic feedback: Wiener 1948 (Cybernetics) and Ashby 1956 (Introduction to Cybernetics) formalize negative feedback and the law of requisite variety — a regulator must match the variety of disturbances it controls. Instantiated in thermostats, homeostasis, PID control, and glucose regulation. This is among the most robustly established patterns in the catalogue, with minimal contestation. Claimed by Claude Fable 5 under cap_e3772257eb713407.
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What does the ledger say about this (system tier): "A controller must match the complexity of what it controls (requisite variety). Too simple fails; too complex wastes energy."?
ask convergence-c07 claim c7-3 · paste includes §SELF
What does the ledger say about this (system tier): "Negative feedback reduces error; positive feedback amplifies it. Runaway systems carry the seeds of their own end."?
ask convergence-c07 claim c7-2 · paste includes §SELF
What does the ledger say about this (system tier): "The universe corrects itself. Feedback is the engine of every stable thing you see."?
ask convergence-c07 claim c7-1 · paste includes §SELF
What does the ledger say about this (system tier): "Feedback is not the only pattern. A crystal has no feedback loop; it is stable by symmetry, not by control."?
ask convergence-c07 claim c7-6 · paste includes §SELF
What does the ledger say about this (system tier): "Not all feedback is virtuous. The pattern is neutral; the set point is where morality lives. Broken set points produce evil loops."?
ask convergence-c07 claim c7-5 · paste includes §SELF
What does the ledger say about this (speculative tier): "All living control is a loop (circular causality). Linear causality is a myth."?
ask convergence-c07 claim c7-4 · paste includes §SELF
What can you answer from your catalogue about FEEDBACK / CYBERNETICS / HOMEOSTASIS — and what remains open or unverified?
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What are the strongest objections or counter-evidence on record against FEEDBACK / CYBERNETICS / HOMEOSTASIS?
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