If you think Geoff is a troll, please alert the moderators.
I have on many occasions. And for things like this:
“Directionality would cause the cable to heat up and fail or cause a
fire?!!” OMG!! 🔥Now I’ve heard everything. The tiny strands of wires in
all power cords are directional since all wires are directional. But
there I virtually no difference in how electricity is conducted either
direction. Are you pretending to be slow?
The above quote contains several contradictions plus a personal attack; it is based on the falsehood of 'all wires are directional'. Its easy to parse out: if a wire were indeed directional, it would have a higher resistance or impedance with current going in one direction than if current were going the other direction. This increased impedance would over time heat up the resistance of the wire in the same way that all resistors do when current flows through them.
In an AC power cord, current flows each way 60 times per second. So a wire that somehow favors one direction over the other (were that even possible) would be unsuitable for this application (it would heat up...not a good power cord behavior); that is why there are none. If a wire conducts better in one way then the other, this implies a diode and diodes cause rectification (conversion from AC to DC, which is a non-linear function) which would make the power unsuitable for the power transformers used inside the audio equipment. Further, diodes in series with any AC signal (for example an audio signal) are a source of distortion; in fact they are used in effect pedals used by guitarists to make distortion (and are known as 'fuzz boxes' or 'fuzz pedals').