So you think wire conductors in cables are directional? Think again...

If wire had directionality to audio signals somebody would already have invented a device to measure and quantify it! So where's this device?

"By participating in a discussion regarding the existence of God you have proved you believe God".

“The law of gravity and gravity itself did not exist before Isaac Newton." ...and what that means is that that law of gravity exists nowhere except in people's heads! It 's a ghost!"
Mind has no matter or energy but they can't escape its predominance over everything they do. Logic exists in the mind. numbers exist only in the mind. I don't get upset when scientists say that ghosts exist in the mind. it's that only that gets me. science is only in your mind too, it's just that that doesn't make it bad. or ghosts either."
Laws of nature are human inventions, like ghosts. Law of logic, of mathematics are also human inventions, like ghosts."
...we see what we see because these ghosts show it to us, ghosts of Moses and Christ and the Buddha, and Plato, and Descartes, and Rousseau and Jefferson and Lincoln, on and on and on. Isaac Newton is a very good ghost. One of the best. Your common sense is nothing more than the voices of thousands and thousands of these ghosts from the past.”
― Robert M. Pirsig, Zen and the Art of Motorcycle Maintenance: An Inquiry Into Values

General relativity, also known as the general theory of relativity, is the geometric theory of gravitation published by Albert Einstein in 1915 and is the current description of gravitation in modern physics. General relativity generalizes special relativity and refines Newton's law of universal gravitation, providing a unified description of gravity as a geometric property of space and time or four-dimensional spacetime. In particular, the curvature of spacetime is directly related to the energy and momentum of whatever matter and radiation are present. The relation is specified by the Einstein field equations, a system of partial differential equations.

https://en.wikipedia.org/wiki/General_relativity

The original theory of MOND by Milgrom was developed in 1983 as an alternative to "dark matter". Departures from Newton's law of gravitation are governed by an acceleration scale, not a distance scale. MOND successfully explains the Tully-Fisher observation that the luminosity of a galaxy should scale as the fourth power of the rotation speed. It also explains why the rotation discrepancy in dwarf galaxies is particularly large.
https://en.wikipedia.org/wiki/Alternatives_to_general_relativity#Relativistic_MOND

"People who are busy growing up seldom rock the boat"

Legit curious question: What more than 1's and 0's constitutes digital signal?

Insertion loss and return loss are relevant for RF in antennas and microwave but not audio in a few feet of wire.

Alternating current alternates, it's the energy that flows in one direction.

It's just not true...especially for AC. The AC current travels in both directions. Here's an easy explanation.

$10K for 0.05% accuracy out to 1MHz

That is sufficiency accuracy for a cable in audio.

So yes, 0.05% is more than good enough for human hearing, or any practical manufacturing process.

Even $8K he has not justified. A quick search shows $10K for 0.05% accuracy out to 1MHz.

At least the author uses science and math.

Look at all that chest puffing, but not an argument among the four of you. That is rather telling.

Everything a human is capable of hearing can be measured.

Not everything can be counted, counts. Not everything that counts, can be counted.

Everything a human can hear can be measured, no ifs, ands or buts. There is no equivocation,  no in principle, it's a simple fact. Plain and simple everything we hear is a physical phenomena transferred via the air around us.

Silver and copper are the two most conductive metals known to mankind, with gold following behind in third place. The conductivity of silver clocks in at 63 x 10^6 siemens/meter, roughly seven percent higher than the conductivity of annealed copper, which stands at 59 x 10^6 siemens/meter. Measured in ohms, the difference in the resistance (the amount of electricity lost as a current travels from point A to point B through a material) of 24-gauge, 1000-foot-long silver and copper wire is minor. The resistance of the copper wire is a mere 2 ohms higher.

As a scientist can you tell us how science would go about creating test where we can " trust our ears"?

I’m not saying to measure anything. Just don’t cheat and use your eyes when trying to judge what you’re hearing. That’s all.

The visual and auditory systems frequently work together to facilitate the identification and localization of objects and events in the external world. Experience plays a critical role in establishing and maintaining congruent visual–auditory associations, so that the different sensory cues associated with targets that can be both seen and heard are synthesized appropriately. For stimulus location, visual information is normally more accurate and reliable and provides a reference for calibrating the perception of auditory space. During development, vision plays a key role in aligning neural representations of space in the brain, as revealed by the dramatic changes produced in auditory responses when visual inputs are altered, and is used throughout life to resolve short-term spatial conflicts between these modalities. However, accurate, and even supra-normal, auditory localization abilities can be achieved in the absence of vision, and the capacity of the mature brain to relearn to localize sound in the presence of substantially altered auditory spatial cues does not require visuomotor feedback. Thus, while vision is normally used to coordinate information across the senses, the neural circuits responsible for spatial hearing can be recalibrated in a vision-independent fashion. Nevertheless, early multisensory experience appears to be crucial for the emergence of an ability to match signals from different sensory modalities and therefore for the outcome of audiovisual-based rehabilitation of deaf patients in whom hearing has been restored by cochlear implantation.

Funny thing is there are numerous examples of people having something very much akin to sonar. It generally is referred to as echolocation, and has been the focus of some experiments/studies, scientific-like and everything ( they probably even use voltmeters and stuff ).

Because they take advantage of their hands and because they walk on solid earth they dont swim or fly...

Ya see how bizarre things are here djones51 and edgewound. I am now the thing under the bed now. You two made the mistake thinking this was an audio site? Nope? Instagram for audio children who never grew up past high school. Can't have a mature discussion about cable's here or audio. They are not interested. It's a cliche and you are not invited. How bizarre, how bizarre.

Just curious...What does a doctor know about hearing?

With all joking aside, I’m confident that from the listening position, a half dozen strategically placed throw pillows can influence sound more than any speaker wire, no matter how much it costs or which direction the arrows are pointing.