A question about cable break-in

I'm no expert, engineer or rocket scientist, but I just don't get the whole wire/cable break in theory. Tubes yes, SS amps and Pre's OK, even speakers need to loosen up a bit, but a piece of wire??? I just bought a new pair of Cardas Golden Reference BiWire for my speakers, will they really sound better in two weeks? If so when do they run out of gas and stop sounding good? Do they have a life span? I am trying not to sound sarcastic but can someone give me some techie info to back up these claims. And at the cost of these wires perhaps I should only listen sparingly so I don't wear them out...

I guess the big thing is if cables burn in then there is a change to the physical or molecular make up of the wire used. If that is the case how and when does that process stop happening or do cables have a life span? Do they sound better and then slowly start sounding bad again. Is it a case of controlled obsolesance by the cable manufacturers? I am not into the whole agrue for the sake of argue, and I also am not going to the electricians manual for my answers, I just don't get it. Everything else in our lives that requires a break-in has a point where they are worn out or spent. Is that the case here? If I am being a pest, turn up the music and drowned me out!

Happy lisstening.

so it is; we agree, disagree; explain, can't explain:

It's all good.

Now for a serious question. Just tried something new that I am half happy with and half I'm not sure. Please see my post on new cardas golden ref.

Thanks and in all seriousness, HAVE A GREAT NIGHT!!!