clearthinker +1!
astel.
apples and oranges. Data is not the same as the many nuances involved with hi-end audio reproduction
It is up to the designer to know their science. I have seen raw cable tested for directionality resistance. It matters
Although optical cable is not directional, the quality of the finishing of the cut is critical for music. Hi-end optical cables ends are highly polished using high powered microscopes
Aside from my coax, all my components are balanced, and although many tout that XR is only for long runs, I can hear the difference between a 0.5m and a 1.0 meter cable
hth