@milpai,
Person 1: I like this chocolate ice cream better than this other ice cream.
Person 2: It is the same ice cream, I just put it in a different bowl. (this argument does not apply to wine where the glass can have a minor difference -- for the pedantic in the crowd)
Person 1: I like the taste of this chocolate. It has to be a better chocolate, it costs 10 times as much as the other chocolate.
Person 2: They add ingredient KZW to their chocolate. It slightly masks the chocolate flavour, but gives a hint of saltiness that many people like. They use the same base chocolate as the lower cost chocolate. You like salty foods, so that is probably why you prefer it.
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Science also can’t make people not apply bias to what they read, such that they see what they want to see, not a more accurate representation of what was written.
I am not sure there was even 1 comment in this thread that said anyone’s personal preference was wrong, nor that anything was irrelevant, but it also did not accept both easily proven false claims, and irrelevant claims as being relevant either. I don’t think anyone even said in this thread that a well measuring DAC would sound "better". In fact, it was repeated that there was every likelihood that it would not.
Your post in many ways is serendipitous. Bias can be a powerful influence on perception.