My 2 cents...When you cryogenically treat an object (in this case metal) you PERMINENTLY change the molecular matrix that establishes the foundation of the structure. What I mean is that there are stressor that are "sealed" into molecular structures when these materials are created,formed,heated,cooled etc. What cryo does is try to eliminate these stressor forces so that the bonds are more relaxed and able to anneal together more evenly as a "team". Burn in is just simply the concept that the the microscopic "cracks" between the crystalin structure of the material contact better due to settling from heat,stable electron flow, from merely keeping the material steady. Thats why you read so often that keeping equipment on all the time keeps these processes in a perfect state of transduction. Also, if you flex the material in question (metal), you temporarlity break these "equilibrium" states that these materials have reached. Alot of this is true science, though, in our audiophilicus preposteri world...alot of BS can be injected into the science and turn everything into heresay. IMMHOO (in my most humblest of opinions). lol.
