When is a Model Not a Model?

Harish's Notebook - My notes... Lean, Cybernetics, Quality & Data Science.

Ross Ashby, one of the pioneers of Cybernetics, started an essay with the following question:

I would like to start not at: How can we make a model?, but at the even more primitive question: Why make a model at all?

He came up with the following answer:

I would like then to start from the basic fact that every model of a real system is in one sense second-rate. Nothing can exceed, or even equal, the truth and accuracy of the real system itself. Every model is inferior, a distortion, a lie. Why then do we bother with models? Ultimately, I propose. we make models for their convenience.

To go further on this idea, we make models to come up with a way to describe “how things work?” This is done for us to also answer the question – what happens when… If there is no predictive or explanatory…

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