In Australia, the moon is upside down. At least to my eyes.
In the United States, the moon is upside down. At least to an Australian's eyes.
Our view of things becomes our standard.
If I immerse myself to the point of accepting surround sound as normal, then stereo feels pale and lacking. The same is true for monophonic vs. stereo, headphones vs. speakers, live vs. recorded.
Our standards are neither fixed nor fact. They vary from situation to situation.
And our standards change over time and circumstance.
So when you're setting your standards it's helpful to remember just how fragile they are.
I cannot tell you how many times that which was once thought to be set in stone has changed.
Standards are a movable myth.