Do speaker cables need a burn in period?

All the 🐈 mewling sound and fury reminds me of another venue. 

Leave it to Dante.

ma prima avea ciascun la lingua stretta coi denti, verso lor duca, per cenno; ed elli avea del cul fatto trombetta.   (Inf. 21.137-39)

ma prima avea ciascun la lingua stretta coi denti, verso lor duca, per cenno; ed elli avea del cul fatto trombetta.

Translation: I come from the land of bs.

Yes, a farting demon as it were, thus the analogy. 

Lets follow a moral compass and  try to respect your fellow audiogoners. Let's get back to the OP. I believe in Burn in. Tubes certainly burn in don't they. I have experienced that for sure. Wire or metal is the same.

The compass points at Kitty. 🐈💩

He is a habitual offender, and can expect to get as good as he gets. 

How is that for a bearing to the station, for a non-precision approach. 🐍💩🙀