“The construction of an economic model, or of any model or theory for that matter (or the writing of a novel, a short story, or a play) consists of snatching from the enormous and complex mass of facts called reality, a few simple, easily-managed key points which, when put together in some cunning way, become for certain purposes a substitute for reality itself.”

— Evsey Domar

Essays in the Theory of Economic Growth (1957)

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Evsey Domar 1

American economist 1914–1997

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“If a model itself is “a poor representation of reality,” they write, “determining the sensitivity of an individual parameter in the model is a meaningless pursuit.””

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“Bourgeois sport [wants] to differentiate itself strictly from play. Its bestial seriousness consists in the fact that instead of reamaining faithful to the dream of freedom by getting away from purposiveness, the treatment of play as a duty puts it among useful purposes and thereby wipes out the trace of freedom in it. This is particularly valid for contemporary mass music. It is only play as a repetition of prescribed models, and the playful release from responsibility which is thereby achieved does not reduce at all the time devoted to duty except by transferring the responsibility to the models, the following of which one makes into a duty for himself.”

Theodor W. Adorno (1903–1969) German sociologist, philosopher and musicologist known for his critical theory of society

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“If economic reality is actually so complex that it can only be described by complicated mathematical models that add epicycles to epicycles and externalities to externalities, then the reality should be simplified.”

Herman E. Daly (1938) American economist

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“(…) no spectator is needed, because your consciousness basically is your reality model. I think that consciousness is the way information feels when being processed in certain complex ways. Since the different parts of your brain interact with each other, different parts of your reality model can interact with each other, so the model of you can interact with your model of the outside world, giving rise to the subjective sensation of the former perceiving the latter.”

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“Scientific models have all these connotations. They are representations of states, objects, and events. They are idealized in the sense that they are less complicated than reality and hence easier to use for research purposes. These models are easier to manipulate and "carry" than the real thing. The simplicity of models, compared with reality, lies in the fact that only the relevant properties of reality are represented.”

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“Obviously, the faster we process information, the more rich and complex our models or glosses — our reality-tunnels — will become.”

Robert Anton Wilson book Quantum Psychology

Quantum Psychology : How Brain Software Programs You and Your World (1990), p. 45
Context: Obviously, the faster we process information, the more rich and complex our models or glosses — our reality-tunnels — will become.
Resistance to new information, however, has a strong neurological foundation in all animals, as indicated by studies of imprinting and conditioning. Most animals, including most domesticated primates (humans) show a truly staggering ability to "ignore" certain kinds of information — that which does not "fit" their imprinted/conditioned reality-tunnel. We generally call this "conservatism" or "stupidity", but it appears in all parts of the political spectrum, and in learned societies as well as in the Ku Klux Klan.

“Models can easily become so complex that they are impenetrable, unexaminable, and virtually unalterable.”

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Meadows (1980) "The unavoidable a priori" in: Randers J. ed., Elements of the system dynamics method, page 27.

“… still many physicists are convinced to "see" the particle in a cloud chamber or on a scintillation screen, therefore accepting classical particle coordinates as pieces of reality. But what one concludes to see depends on the chosen model of reality, and this model can only be judged by its success in consistently and economically describing the observations”

H. Dieter Zeh (1932–2018) German physicist

therefore interpolating between them
Information and determinism, Epist. Letters (Ferdinand Gonseth Association) (1980) 49.0.

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“Complexity has the propensity to overload systems, making the relevance of a particular piece of information not statistically significant. And when an array of mind-numbing factors is added into the equation, theory and models rarely conform to reality.”

L. K. Samuels (1951) American writer

Source: In Defense of Chaos: The Chaology of Politics, Economics and Human Action, (2013), p. 28.

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