Why no “Break in” period?

I repeat: "Bias" is bias, regardless of the viewpoint or subject.     ie: Those that are so adamant, regarding their beloved theories/opinions/biases(regardless of the source), while refusing to acknowledge that ONLY experimentation(the heart of the Scientific Method), provides PROOF, regarding anything discussed.     Most of those are proffering their opinions, without ever having tried what’s being discussed.     What you hold true, in your listening room, is all that matters.     Experiment and trust your ears. Anyone that discredits another’s abilities to hear improvements, in their own systems, in their own listening environments, with their own ears, should be considered condescending, insulting and/or(probably), simply projecting their own ineptitude.    Perhaps, to be pitied.     That’s just logic, which is anathema to the Counter Culture.    Far as, "....big, high falutin’ words"; Higher Education improves one’s vocabulary.     Some here should try it!      Sorry for lack of paragraphs.    Case didn’t offer typing classes, back in the day.

You shouldn't argue with @miller-carbon, he's an expert and if you argue he'll flame you.

Prof, very eloquent. 
After all this nobody has given us a proven reason why a purely electronic device needs to "break in" after the manufacturer's burn in. 
Most of us who do not believe in electronic's breaking in do so because there is not a viable reason why they should. 
Prof has noted that it is easy to hear minor differences in real time like when he is adjusting a mix. Otherwise it is not so easy. You can not remember a sound. You remember your characterization of that sound, a very low resolution method. Try remembering the sound of a particular instrument without having a picture of that instrument pop into your head.
Only superior individuals like millercarbon can do this. The way we characterize sounds is not accurate enough to make fine distinctions  on a remote basis. We can all tell the difference between a cat meow and a dog bark. Can you tell the difference between two Siamese cats or two German Shepards on a remote basis?
It is impossible to approach this enterprise without bias. I dislike unipivot tonearms. My rational may or may not be legitimate but it is certainly viable and I am not alone in that thinking. There are many who believe electronic equipment breaks in sonically. I wish someone could give me a viable reason why. In reality the only reason they have is that they have heard it on a remote basis and as Prof eluded, that is purely subjective and we are not good enough at characterizing sounds we have heard to make that distinction accurately.  

Mke

After all this nobody has given us a proven reason why a purely electronic device needs to "break in" after the manufacturer’s burn in.

after the manufacturer’s burn in.

"after the manufacturer’s burn in." ????

For what purpose would a manufacture need to "burn in" a piece of electronic equipment, wasting his/her time and money for such a purpose?

Circuitry adjustments yes..... "Burn in", though?? Again for what purpose?

What is meant by "forming" of an electrolytic capacitor?