Knowing the cable with respect to engineering point of view is different to the musical point of view.Yes thats the theory behind it and it'll also present a consistent result on the matter no how many times you run the numbers through.
The difference as @twister6 puts it is how we percieve that result, which is influenced per a large number of factors that the theory simply doesnt account for. Unless all those factors are somehow quantified and accounted for, perception simply can't be scientifically verified.
Interpretation of engineering parameters by the machine which collects some information useful for human aid, is not equally interpreted by human brain which is after romantic dreams.
Needs of Human who dreams is not the same level of needs of machine which is after human requirements.
Probably the well understanding is not sufficient for relating those engineering parameters to human emotion / brain function which might has its own interpretation map.I agree with your point but would like to clarify your second sentence. The science of how a cable works is well understood. It’s your perception that can’t be scientifically verified.
For engineering, the cable is simple passive element aka filter or antenna, so that it can be modeled as higher order as possible to get the engineering goal.
However for emotional goal (if there is well defined combination of quantities) might require another higher level which is unnecessarily higher order modelling of filter / antenna.