Are manufacturer AC cables good enough?

I find it rather funny that people who claim that those who hear no differences "have obviously never done the experiments". Does it ever reach consideration that they did do the experiments, rigorously, and properly, and that is why they have proven to themselves a lack of difference?   

djones51, Neil deGrasse Tyson admits that gravity can't be explained! Interesting.....

But we can do experiments showing gravity exists. I am not sure he said gravity can't  be explained perhaps it was we don't really know what gravity is? We can explain the affects of gravity but what it is made up of, gravitons? Who knows. 

Everything you never wanted to know about the thorny subject of gravity is contained in this book, pub. 1973. Authors Misner, Thorne & Wheeler. Big guns. That was the golden age for gravity and black holes, following the success of the A-Bomb and H Bomb, you known, those guys had to find something to do.

https://www.amazon.com/Gravitation-Charles-W-Misner/dp/0691177791/ref=nodl_

Well if I could figure gravity out and unify it then I will accept my "Noble" prize when the pandemic is over if I am still alive.