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Aleksandar,
A study of the history of science only points to all the wrong turns made in the Philosophy of Science. Specifically, the difference is between the belief of knowledge and actually seeking knowledge, especially wrt systems (again, not that hard). Progress in science is hallmarked by moving from one incorrect, incomplete or paradoxical state to a more correct, more complete and less paradoxical state that is still somewhat incorrect, incomplete, and paradoxical. This gets directly to the nature of what we mean by proof – not an unbounded concept of proof as universal truth, but a more narrowly bounded concept of validity with limited contexts (that Popper saw as falsifiability).
When I say that the application of Category Theory to the Science of Systems is simple – it is incredibly simple. Anyone can understand it provided they don’t try to force-fit inadequate prior paradigms (set-theory being one) upon the Category of Categories. That is (was) the great challenge of learning Category Theory, itself. But as long as people “believe” Category Theory is some abstruse, advanced theory, they will have problems.
Many Category Theorists compound this problem. I’ve been known to tell them “if you didn’t want others to know Category Theory, why didn’t you just say so.” Got more laughs than you’d imagine.
So when I tell people that Category Theory is a practical, useful and valuable way of developing interesting understandings of systems, they only look at me in disbelief. I’m a scientist, not a religious practitioner. Let them believe whatever they want.
Ken Lloyd
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