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
I can't wait for Part 2.  I got enough money for all the booze in the world lols.
Better start drinking now, Scooter. Part 2 is coming. Don’t have an aneurism. 😳
teo_audio
As Mr average Joe blow will demand the full 'functional for them explanation'. And that just can't happen."

Mr average "Joe blow" may be a member of the Flat Earth Society and use the same argument. Him being steps ahead of the rest of the pack and all. Further more, there are plenty of intelligent, long term audiophiles (not Joe Blow) who think most of the arguments (above gauge and good quality basic cables) is not relevant as it relates to human hearing. However, by all means buy the the appropriate level of items that do make a difference in your system. 
On the Serengeti you don’t have to be the faster wildebeest. You only have to be faster than the slowest wildebeest.