Do speaker cables need a burn in period?

Here we go again.....

At the very least a few hours of not being moved. 
Never heard anyone report cables sounding worse after a few hundred hours.

At least a week after cryo. When comparing cables at least two days.

Yeah, again. Let's add to it - silver or copper or alloy ? I prefer copper for interconnects and silver alloy for speaker cables with my particular speakers. Both are Purist fluid cables. Solid state equipment.

and for many who believe in cable burn in, we don't listen to the cables while they burn in for a week, so it's not getting used to the sound...