so a cable is not eternal, point taken, I'm gonna return those ouroboros cables pronto, that was snake oil again...
the problem I have with cables, is that on one hand everybody accepts the fact that a dac is turning digital to analog nicely, with who knows how many components and materials. everybody accepts that an op amp succeeds in an almost magical way to add gain to a signal with close to no loss or distortion. in short, the more complex the stuff, the less doubt and questions about it(probably because it is that much harder to pretend to know the subject). but take a stupid piece of passive component like a short cable, and everybody's a rocket scientist that thinks about all the technical advancements to make it better (when at the same time most of the best dac chips have been the same model for years).
the reason why any average dude can pretend he invented a very new better cable that makes the sound "this and that" and has those effects, and need such and such special treatment, and a handful of salt over my shoulder, and should burn-in 172.5hours ... is because all those silly stuff have close to no effect on sound. if we were to let them do to dacs what they do to audio cables, the results would be the most crappy dac ever built(if it could output anything but noise).
if we want to have an open mind and use logic to understand things, let's try to stop focusing our efforts only on the very worthless things that are already perfectly known like cables.
my own personal opinion on most burn-in over 200hours reported as being night and day changes, is that it is plain and simple ********.
and the reason is called dopamine. no need to look into cables to explain what happens in the brain of a guy with his new toy. and the same guy one month later can never feel the same way or focus the same way on sound when listening to that toy. that is known and explained and fits perfectly with everything described by audiophiles, no need to chase after quantum particles.