But can you hear qualities that cant be measured? Or, is your view....if it can't be measured, it does not exist? (That is why audio salesmen refer to EE's as Flat Earthers...if it cant be measured or proven, it does not exist. I am just recently becomming aware of these camps....just a modest quality component consumer. I never bought a green magic marker for my CD's, either.
If it can't be measured, then how do you know that you have achieved your goal in a reproducible manner?
If it can't be measured, then is it just a crap shoot that you met your goal on each individual unit that gets produced?
Remember, ALL MANUFACTURING HAS VARIATION, it's the nature of the beast.
I have never heard a decent scientist or engineer say "it can't be measured so it does not exist". I interact with several of each on a daily basis, for the last 20 years. How many scientists and engineers do these real flat-earthers (the magic cable guys) interact with daily? They may say "it is below our limit of detection" or "we may not be making the correct measurements to capture this phenomenon".
Scientists are inherently skeptical and inherently seek data and facts to explain nature.