Do Cables Wear Out?

Ive been enjoying the serious and the nonsensical replies. I really enjoyed the Rent a Cable idea, oh and yes I do have a family and am far from numb Mitch as I have grown up around the Stereophile people here in Santa Fe so needless to say I have heard it all. The question has brought much entertainment and some intresting comments. Thanks.

Gunbei, as you well know the June 30th 1908 Tunguska event incentral Siberia was clearly predicted by Nostradamus, whose prophetic work was an integral part of Mesmer's and Holbeins scientific toolkit. Furthermore, the recent attribution of the event to a meteorite or comet is most certainly of rductionist and reactionary origin. We all know the explosion was cause by runaway electron-flow jitter that precipitated the catastrophic particle disintegration of a cosmic Electraaglide Superchord, sometimes erroneously referred to as a common 'superstring' by the most revisionist modern cosmologists. The uncensored truth was paradoxically heralded by 2-inch-high headlines of the Krasnoyarskaia Gazeta for July 1st of the same year: "NEW HIGH-END POWERCHORD LAUNCHED HITS THE MARKET -- Hundreds Feared Dead, Thousand Missing, Hundreds Kilometers Of Forest Totally Flattened!!!!"

Those poor reindeer.

I don't know about wear out, but they can tarnish, even within the teflon (or other) sheath. I have personally witnessed this with kimber 8tc. The copper was tarnished through and through. It was a curious result. That will change the electrical properties as the adjacent conductors now have a nice green fuzz. Perhpas if one were to characterize the distortion of such a cable, it might be found to be of an even order nature, thus making everything sound nicer ;) cause even not odd is where it's at in our universe.
I am worn out of this post. eLater!

Dpac996, I have a 20-year-old copper pot sitting on an an early 19th century Italian chest of drawer in my home's entrance. This pot is also badly tarnished in black and green. I thought that just normal passage of time, combined with oxygen, Carbon dyoxide and water vapor in the air were the cause of oxidation. Now I am wandering if instead perhaps excessive electron flow could be the cause. . . could the oak timber in the chest of drawer have become highly conductive over the last two centuries and my pot now be part of a vast and mysterious electric circuit? Or is its relative proximity to my stereo the culprit? Perhaps I should stick an Intelligent Chip on the lid of my pot and see if the tarnishing clears up by itself. . .