Bob, that article on cables, like just about all of them, misses the key point - any cable or electronic part is made of real materials which do not behave nicely when you zoom in really closely on them. There are all sorts of parasitic effects, metal to metal, temperature, movement, static behaviours - which create noise; it's a nightmare world if you look too closely at the electrical activity. And unfortunately that noise is right on the edge of being audible if a system is "transparent" enough, if the volume is high enough. Worrying about pure resistance, capacitance and inductance all the time is a complete dead end as far as attaining high quality sound is concerned ... it's all about the cable not being "perfect" as an electrical signal transport system - it's not a textbook problem!!