Although I generally keep away from those discussions, I agree with Geoff on that...
So many have
discussed wire directionality, and staked out the cases for
or against. The tone of the conversation routinely crosses the line of usefulness, and transcends the magnitude of the issue itself. I feel content to let both sides live happily. If you believe in the directionality of wire, fine. If you don't, also fine. No one should lose any sleep over it either way. Perhaps the one thing I can add is my belief that the
resistance measurements folks in audio employ to disprove the phenomenon may lack the sophistication
to actually do so, and provide the real answer.
Just out of school in the early 90s, I worked as a material scientist / R&D chemist for a company that produced (conductors, resistors, dielectric, solder, etc.) materials for the electronic industry, including those that build the resistors and capacitors we use in audio. Through the course of my experiments, I often
encountered situations that left me wondering how the results could impact the
world of high-end audio. Don't miss the low salary, but do miss the environment and equipment that would allow me to kick such things
around. Had access to the internet, forums like this, and the sharing of knowledge that we do existed, I would have conquered many of those hills, but such is life.
Sadly, the quantity and quality of folks working in this realm continues to decline. With few exceptions, what remains doesn't strike me as having the sort of background, equipment, time, or personality that ask and answer such questions