Ok, I am trying to understand this 2nd law.
Would it be correct to say that all matter, in a closed system, is degrading so to speak ?
This sounds like the basis for "carbon dating".
No.
It need not "degrade", but without an energy input, and without causing more "degradation" (Not really the right term, increase in entropy or randomness would be more correct) somewhere, it's can't "un degrade".