Can anyone explain in laymans terms why your gear sound better after warm up


I get burn in... should be called burn off just to get the manufacturing process off all the different manufacturers and parts to sweat off the packaging and sealants. But a light bulb is on or off. So SS gear in theory should sound the same. A light bulb does not get brighter after an hour. Is it your ears get programmed? Or is there and actual technical reason that it sounds better? Please pretend Im a four year old cause with Electronics I am.

-ALLGOOD
haywood310
Post removed 
Is there and white paper that explains this "shkong"?  I am a believer I just dont know why? 
shkong78


Is there a white paper and stats about this? I would like to read it. Im a believer I just dont know why???
Resistance and capacitance are some of the electrical properties that change with temperature. For the electronic equipment to be able to properly measure and provide accurate and consistent results, these instruments must warm up and stabilize thermally. Some argue that ‘warm up’ may not be the right term to use, as some devices sometimes need some time to stabilize thermally.

If you look at Sterophile's test measurements, they always warm up or per-condition the equipment prior to testing.