Measure of any kind, as electrical,mechanical or acoustical measures, is inscribed in a measurement spiralling circle where the ears/brain also is inscribed in the measuring process itself as the ultimate ruler . Then measuring is an indefinite improving interpretative process.
For example if we add the crosstalk concept for a better description of all stereo system effect , we then may infer why all stereo system fail to convey all the acoustic information there is to convey from the recording process. Then to restore what is lost in all stereo system we must introduce other set of measures to compensate for any stereo system crosstalk main defect. Said Prof. Choueiri.
And so goes the progress wheel...
«Seeing her coming to me i sang Om, but she begun to spoke about Ohms and we departed»- Groucho Marx 🤓