Directional cables - what does that really mean?


Some (most) cables do sound differently depending on which end is connected to which component. It is asserted that the conductor grain orientation is determining the preferential current flow. That might well be, but in most (all) cases the audio signal is AC (electrons going back and forth in the cable), without a DC component to justify a directional flow. Wouldn't that mean that in the 1st order, a phase change should give the same effect as a cable flip?

I'm curious whether there is a different view on this that I have not considered yet.
cbozdog

@secretguy 

I mistakenly ran an interconnect in the wrong direction. It immediately swelled up and burst. There were electrons all over the floor. Took me an hour to Swiffer them all up.

That is a bit negative.
(Maybe I am more of an optimist?)