Ouroboros

I find the ouroboros image reminds me of the recursive nature of the universe and of life.

My favorite image is the ouroboros encompassing yin-yang.

See Ouroboros in Cybernetics

# Cybernetics Cybernetics deployed circular logics of causal action in the core concept of feedback in the directive and purposeful behaviour in human and living organisms, groups, and self-regulating machines. The general principle of feedback describes a circuit (electronic, social, biological, or otherwise) in which the output or result is a signal that influences the input or causal agent through its response to the new situation. W. Ross Ashby applied ideas from biology to his own work as a psychiatrist in "Design for a Brain" (1952): that living things maintain essential variables of the body within critical limits with the brain as a regulator of the necessary feedback loops. Parmar contextualises his practices as an artist in applying the cybernetic Ouroboros principle to musical improvisation.[28] Hence the snake eating its tail is an accepted image or metaphor in the autopoietic calculus for self-reference,[29] or self-indication, the logical processual notation for analysing and explaining self-producing autonomous systems and "the riddle of the living", developed by Francisco Varela. Reichel describes this as: ...an abstract concept of a system whose structure is maintained through the self-production of and through that structure. In the words of Kauffman, is ‘the ancient mythological symbol of the worm ouroboros embedded in a mathematical, non-numerical calculus.[30][31] The calculus derives from the confluence of the cybernetic logic of feedback, the sub-disciplines of autopoiesis developed by Varela and Humberto Maturana, and calculus of indications of George Spencer Brown. In another related biological application: It is remarkable, that Rosen's insight, that metabolism is just a mapping..., which may be too cursory for a biologist, turns out to show us the way to construct recursively, by a limiting process, solutions of the self-referential Ouroborus equation f(f) = f, for an unknown function f, a way that mathematicians had not imagined before Rosen.[32][33] Second-order cybernetics, or the cybernetics of cybernetics, applies the principle of self-referentiality, or the participation of the observer in the observed, to explore observer involvement in all behaviour and the praxis of science[34] including D.J. Stewart's domain of "observer valued imparities".[35]

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