Does Power Cord Require Burn-In To Sound Good?

It just seems so "Odd".
Odd that, "certain people", wish those of us whom have found that using a different power cable may change, "For the better" the music we hold so dear.
As if they are going to somehow, "Save us from ourselves". 
And they believe- They are doing a good deed. To, "Save us",- Some of our money, some of our time.
 And apparently, 
They are VERY worried about us.
Worried about us, "Looking Silly". 
But To whom?

They remind me of "teenagers". Which at certain stages are always embarrassed by their parents. Embarrassed by absolutely everything a parent "does", "say's", or even, "thinks".
Because in a nutshell? We do not, "Look Cool".
     "To them".
     But I "Feel cool"....

  So in order to show us all the error's we are making. So that we may learn to mend our way's? And see things, "Their way"?
They are armed with more tools than we could possibly ever even think to counter.
  And OH!, their "Mastery", of these tools!
And the tools are?
"Well typically"......
Basic, "Math, Physics and Ohm's Law". 
And, "Oop's" I forgot! About, (Common sense). There is usually one to throw that in as well.
So, a voltage drop calculation and maybe a quote from the, "NEC" and then a smart remark, "As pop used to say".
And as teenager's always do, they then share those secret, "knowing looks",
Because they are just so sure that "We", have never really been around the block as they have been.
OR, we have just gotten too old and forgotten, "Everything", "POOF"~!
Sound familiar?
 
My rig sounds amazing, "Both".
 And, I look cool too.



(I hope this works).

"Marcomarmo",- said;
"There isn't any physical process that causes any modifications to the marcroscopic or microscopic structure of a cable during what you call 'burn-in' ".

That would be incorrect. 
   And the, "physical processes" involved, never cease.
Imagine yourself sitting for a long period. Not moving. 
Ten feet away no one looking may "see", you move. But you are moving.
You breathe. And the air you breath? It moves too. A truck passes outside billowing smoke. Some time later you smell that smoke. You cough.
And now anyone even 100 feet away, could see you move. 
And the reflected wave of light right now allowing you to peruse this forum? 
Like everything else? It cannot stop it's movement. 
Slower than molasses the "light wave", "Physically" moves. Reactive, proactive and subjectively moving according to the rules. And changing, always evolving. And at some point it shall discorporate from being that "wave".  But It's sum of different parts still exists. And is even still roughly in the same location.
And the "power", in your cable is made up of the exact same articles as the light-wave. Maybe arranged just a little differently, at a level "intangible", to us. And still  with the exact same parts. 
 You cannot, "See" magnetic polarities. But you can "feel" them when strong enough, against your own polarity.
You also cannot see the tree that fell in the forest. But it is still on the ground. 

+1 for "Shunyata Research"! Power and also USB cabling which I secured from them are very good. I personally, have never noticed "much" as far as "Burn-in" with power cables. Maybe that's me, maybe my gear. I DO notice with certain cabling the effects of "Cryo-Treatment" more than "Burn-in" though. I've been doing that myself at times for over forty years. "I started with my guitar strings and hand-wound, (pick-ups), actually". (Circa 1977).
After hearing "Eddie V.H.", loved the way it changed his sound..
"R.I.P." Eddie........