Blind Power Cord Test & results

If you can't hear a difference, what difference would any "scientific" test make to your listening experience? For those of us who can hear a difference--where we have put ourselves to the "test" of reliably distinguishing between some cords in our systems--what is there to prove? I don't really understand what explains the differences I have heard between some cords, interconnects and speaker cables. Nor do I care. Nor do I want to convince anyone else, beyond recommending that they listen for themselves. No one is threatening to deny cord nonbelievers their rights and liberties. As for the psychic phenomena comparison: if someone could reliably tell me what numbers I had written down, out of her view, I wouldn't doubt she is "psychic." While scientists would no doubt like an explanation of this phenomenon, the absence of a scientific explanation would bear not at all on the reality of the phenomenon. So I am not sure why the science-types continue to insist on proof from those of us who are mere listeners--unless they are actually directing their skepticism only to those science-types who also claim to be able hear differences between some cords.