Why do intelligent people deny audio differences?


In my years of audiophilia I have crossed swords with my brother many times regarding that which is real, and not real, in terms of differeces heard and imagined.
He holds a Masters Degree in Education, self taught himself regarding computers, enough to become the MIS Director for a school system, and early in life actually self taught himself to arrange music, from existing compositions, yet he denys that any differece exists in the 'sound' of cables--to clarify, he denies that anyone can hear a difference in an ABX comparison.
Recently I mentioned that I was considering buying a new Lexicon, when a friend told me about the Exemplar, a tube modified Dennon CD player of the highest repute, video wise, which is arguably one of the finest sounding players around.
When I told him of this, here was his response:
"Happily I have never heard a CD player with "grainy sound" and, you know me, I would never buy anything that I felt might be potentially degraded by or at least made unnecessarily complex and unreliable by adding tubes."

Here is the rub, when cd players frist came out, I owned a store, and was a vinyl devotee, as that's all there was, and he saw digital as the panacea for great change; "It is perfect, it's simply a perfect transfer, ones and zero's there is no margin for error," or words to that effect.
When I heard the first digital, I was appalled by its sterility and what "I" call 'grainy' sound. Think of the difference in cd now versus circa 1984. He, as you can read above resists the notion that this is a possibility.
We are at constant loggerheads as to what is real and imagined, regarding audio, with him on the 'if it hasn't been measured, there's no difference', side of the equation.
Of course I exaggerate, but just the other day he said, and this is virtually a quote, "Amplifiers above about a thousand dollars don't have ANY qualitative sound differences." Of course at the time I had Halcro sitting in my living room and was properly offended and indignant.
Sibling rivalry? That is the obvious here, but this really 'rubs my rhubarb', as Jack Nicholson said in Batman.
Unless I am delusional, there are gargantual differences, good and bad, in audio gear. Yet he steadfastly sticks to his 'touch it, taste it, feel it' dogma.
Am I losing it or is he just hard headed, (more than me)?
What, other than, "I only buy it for myself," is the answer to people like this? (OR maybe US, me and you other audio sickies out there who spend thousands on minute differences?
Let's hear both sides, and let the mud slinging begin!
lrsky
I agree to the extent, Holzhauer, only if you think that ignorance is bliss.
To never go on a cruise because you are sure without knowing that you will get sea sick, or feel confined on a ship.

To not go to Paris, for fear that the ethnocentric French will give you a hard time.

To never hear music in your home played like it can be, just to save a few dollars; when we both can agree that the undertaker rarely sews money into the pockets of shrouds.

Yes he spends less, but he can afford to enjoy one of life's great joys, music, with much more lifelike gear, but allows himself to accept less through a completley shut down logic path.

I may be frivilous, but I am having fun not with only the music, but with the joy of discovery, and I hope it will always be so.
By the way, how could someone who is as proud as you; enough so to take pictures of your system to show the world, make such a statement of how HE is lucky. I think you and I are lucky to have found something we love so much.
So, you think your brother is ignorant -- and condescending -- because he doesn't hear what you claim to hear and he probably thinks you are deluded -- and probably questions how you can say you don't care if you have no explanation for why two power cords should sound different, you just accept it with no further investigation and then assert that HIS ignorance is bliss. Ultimately, this sounds more like fodder for family counseling, not an audio site.
Rsbeck, you are being needlessly ugly here.
The first things I stated about my brother, above are, and I quote "He holds a Masters Degree in Education, self taught himself regarding computers, enough to become the MIS Director for a school system, and early in life actually self taught himself to arrange music, from existing compositions,". I would tell anyone, and have, that he is brilliant in so many ways, buy typical of many non believers. I don't point this out for the personal issues, which are real, but for the whole of audio lovers who face the same, kind of, " I won't even try it, because I don't believe it" viewpoint. I am saying that ignorance, (different from stupidity) is bliss, if one deny's him or herself the opportunity to try something due to a predisposed thought process, which allows them to not believe in the possibilities that can exist. Obviously you disagree, and I respect that, butyou are missing the finer point here, or so it seems.
He's not stupid,quite the contrary; just sure that nothing that he can't understand, or explain is possible. My point is, where would we be if everyone adopted that attitude?
Only the 'dreamers' and the 'what if people' like Edison, who performed (to world ridicule as the stories go) 10,000 experiments on the light bulb, before getting it.
The Scientific Journal asked him, "How does it feel to have so many (at that time I think it was 5000)failures.
Edison, just looked at the interviewer and said, "I don't see it that way, as a scientist, I now know 5000 things that won't work. The rest is history, and of course he perfected the bulb.I am saying that my brother's attitude, represents a group of people who, if they can't explain it, won't even try it, and for all of his brainpower, would never have invented the light bulb, or whatever, and I think that's a waste of his abilities, that's all.

Being without skepticism does not render one Edison. That's a flawed argument. I don't mean to be ugly, but you posted your family squabble on a public site and asked for feedback. I'm just telling you that it seems your brother has gotten under your skin and that it seems to me like there is more to this than audio -- this seems to be a problem for you. In my experience, when someone becomes an evangelist to the extent where you want your brother to set aside his skepticism and see the world the way you see it -- it has become a larger problem than audio. You seem extremely conflicted about your brother -- that much is pretty obvious. This, to me, seems like a larger and more important problem for you to delve into rather than trying to gather like minded audio enthusiasts to side with you against your brother -- sorry -- that's just the way I see it.