Do speaker cables need a burn in period?

One thing you can bet your life on is that atom physics and particle physics are *very* mature sciences.

"mature" is a relative term.  One cannot be so arrogant to claim human has known everything about nature.  Quantum physics is not the final words.  For example, dark matter and dark energy : nobody knows anything about it and they comprise about 90% of the universe.  One has to be humble what one knows and what one does not know.

Hey, whatever you’re comfortable with. 😛

The metaphysical and the scientific. Until we have testing equipment that can test things outside the reach of science right now, only our opinions can be our reasoning. Does science know all about the behavior of atoms and electrons? I don't think tbere is a physicist, electrical engineer or researcher that would bet their life on it. Oh well the discussion goes on

^^^ I think there is a member here who sells cables tailor made for this gentleman :)

Every component in the ac- or signal path will need moore or less of a burn/break-in. some components in the signal-path like condencers might need a long period, while a powercable gets it`s massage a lot faster.

Speakercables are somewhere between, it will depend a lot on how much power you give them. And if they are worth your time. A poor sounding cable will stay poor.  One hour of serious abuse is enough to get their character.

“One hour of serious abuse is enough to get their character.”

Lost in translation?  Wrong forum?  🙀😱🤔👀🔚