You do know that these measurements came about from observation first, the measurements didn’t come before observation. The science will never further if the measurements stay in stagnation, the ear/brain is more complex than the standard measurements we use for audio.
Did you read what I wrote? Scientists continue to do testing on human hearing to explore limits but those limits change at most now by very small amounts. Scientists are doing that. Audio companies make claims with no basis. It is quite a different process.
You have a belief that our ear and brain have a complexity that cannot be tested by current measurements. That is your belief. I do not see Amir disputing that for speakers. Do you? He does and it appears almost all on the scientific side dispute that for many products such as the oft hated cables (accurately most cables). No one has proven them wrong that I can tell. Lots of beliefs but no proof.
If you REALLY care about "learning what is going on" it may indeed entail that real audible differences are occurring in your cables.
I absolutely am open to the possibility. However, without any valid proof, not belief, but proof, I will err on the side of what has been proven. I used to be convinced of the same thing people hear believe till I was "forced" to accept otherwise. I don’t think any of the detractors here have ever truly tested their beliefs. How can you claim to have strong convictions if you are unwilling to test them?
There does seem to be consensus on the engineering side that some cables can have audible effects. I don’t see black and white, but nuanced reasoned positions. I am not seeing that from competing beliefs.