I have repeatedly said that I definitely believe that audio electronic components will change in the first hours or even weeks of operation.
I can see a definitive case in point where electrolytic capacitors change over time. Initially their capacitance value will change fairly rapidly as the ‘forming’ process stabilises. After this point the minor properties (such as DA, ESR and possibly self-inductance) will continue to show reducing changes over a longer time.
It is also likely that there will be impurity migration at the junctions of semiconductors under the effect of heat (increases mobility) and electric fields (increases applied force), causing some changes in the majority carrier, and probably greater changes in the minority carrier.
Both of these are active components (although in different ways) relying on interface effects for their functioning, hence are particularly subject to change. This is not true of cables.