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Why should physical quantities follow mathematical formalisms? Without getting into long and protracted philosophical discussions, I just want to say that the essence of Physics is 'measurement' while the essence of Math is 'logical consistency'. So why should mathematical derivations be reflected in physical experiments? I like to propose that the way this would be possible is if all Basic Universal Law are mathematical identities (tautologies) that describe the interactions of measurement.
In the short paper "Plancks' Law is an Exact Mathematical Identity" we show this to be true for measurements of energy. In the equally short paper "The Interaction of Measurement" we show that a physical quantity cannot be 'known' by measurements of it. Thus, there is an underlying 'hidden reality' that we can never know but can only 'measure' and all our derivations of this 'hidden reality' are mathematical certainties that only relate to our measurements.
If we seek to describe such underlying 'hidden nature' directly through our mathematical formalisms and physical theories, if we try to theoretically model it as something separate and beyond our measurements of it, we risk falling into the same 'rabbit's hole' that medieval intellectuals had fallen seeking to count the number of angles that can sit at the head of a pin!
We can only know what we can 'observe' and 'measure'. Thus it all comes back to us, our human Understanding of what Is to Us, but not what Is in Itself! Our very Understanding is a form of 'measurement'. And just as you cannot truly know someone by taking 'measures' of their behavior, equally we cannot know a physical quantity by taking 'measurements' of it.
There is nothing 'absolutely real' about our theories! There are just theories that 'make sense' and theories that 'make none-sense'. When a theory has become so abstract and so removed from the 'sensible experience' of our lives, when it creates 'mathematical certainties' that are counter-intuitive and 'weird', it's time to 'stop the weirdness' and to re-think our Universe and re-Create it anew.
Constantinos