why do people feel the need to buy expensive cable

No, you're superman, capable of the impossible, and who purportedly can hear the difference when ordinary speaker wire is reversed.

There is a very good and known technical explanation for the why of such a claim, and when it is evaluated it is known to be a functional answer within the context of scientific validity.

I will do you the solid of telling you that it exists, so that you might go on and find it on your own, but I won't give it to you, as that information is valuable. Hard fought for, in most cases.

Commercial viability is many times tied to learned lore - as applied to product. Lore is protected, for all the right reasons.

The scenario stands as:..you seeming to collect a gaggle of yes men who are in the same boat, vs a largely silent group who understand the lore, the science and the engineering - and it's application to product.

Your voice, or position seems strong, due to the silence of intelligent, agreeable and wiser people.... who are wise enough to avoid the hassle that your position and voice represent.

You don't have a position. You have the appearance of a position--to some.

@teo_audio

I had no idea you were so wise.

Learn to speak, speak with wisdom like a child, directly to the heart.

cleeds -  ...I did express an interest in testing the audibility of cable differences - including directionality - in an objective, scientifically valid test....

As did I, with the inclusion of what is typically found in ones back pocket. To this extent, you declined. Have a nice day.

cleeds -  ...I did express an interest in testing the audibility of cable differences - including directionality - in an objective, scientifically valid test...gdhal As did I, with the inclusion of what is typically found in ones back pocket. To this extent, you declined.

I remain willing to discuss in public an objective, scientifically valid listening test that would be held in public. You want to shuttle that conversation offline for very dubious purposes. If you change your mind and develop a sincere interest in this testing, just let me know. But of course, the discussion and test will have to be in public, so that others  can offer suggestions and participate, if they choose.

@teo_audio

I had no idea you were so wise.

Writing a passage using clever words and phrases does not a wise man make.  Especially when said passage makes so little sense.