You mean, it's easier to show someone who can't hear a difference that there is one than it is to show someone who won't hear a difference that there is one? Thing about blind testing audio... it's not objective, except in that it removes certain subjective biases from the result. Blind testing is actually the ultimate subjective: it's you, your ears, the sound, and that's all. And it is true only for that instance, not any other. That people don't want to use it as a tool or don't care to do the hard work, is fine. That the ultra-subjectives write it off as being ultra-objective is logically wrong. But it is like politics: where the far right meets the far left, they end up being much the same, and logic got left behind long since. Forget changing the world! The thing is, it is just not possible to communicate usefully with ultra-objectives, ultra-subjectives, ultra-egotists, or... amir.