Positive feedback, sometimes referred to as "cumulative causation", refers to a situation where some effect causes more of itself. A system undergoing positive feedback is unstable, that is, it will tend to spiral out of control as the effect amplifies itself.

Technically, a system exhibiting positive feedback Feedback describes the situation when output from an event or phenomenon in the past will influence the same event/phenomenon in the present or future. When an event is part of a chain of cause-and-effect that forms a circuit or loop, then the event is said to "feed back" into itself responds to perturbation in the same direction as the perturbation. That is, "A produces more of B which in turn produces more of A".[1] In contrast, a system that responds to the perturbation in the opposite direction is said to exhibit negative feedback Negative feedback occurs when the output of a system acts to oppose changes to the input of the system; with the result that the changes are attenuated. If the overall feedback of the system is negative, then the system will tend to be stable. These concepts were first recognized as broadly applicable by Norbert Wiener Norbert Wiener was an American pure and applied mathematician in his 1948 work on cybernetics Cybernetics is the interdisciplinary study of the structure of regulatory systems. Cybernetics is closely related to control theory and systems theory. Both in its origins and in its evolution in the second-half of the 20th century, cybernetics is equally applicable to physical and social systems.[2]

The effect of a positive feedback loop is not necessarily "positive" in the sense of being desirable. Positive refers to the direction of change rather than the desirability of the outcome. A negative feedback loop tends to reduce or inhibit a process, while a positive feedback loop tends to expand or promote it.

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'Positive Feedback' News
Prothonotary has first competition in 11 years - Daily American Online
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Prothonotary has first competition in 11 years

Daily American Online

I've gotten a lot of positive feedback and I think they are ready for a change. I would like the opportunity to give them a change, and I am very confident ...



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