Originally Posted by royalmage
Slow is relative. If kakashi never used it for a decade, there could be no affect. We have no data to make any comparisons. For all we know, the "slow decent into darkness" could be 30-40 years if the MS is never used. The fact is, there have been no panels of his vision to make any determinations.
The rest of you are fucking retards. I'm basing my thoughts on real time examples within the manga while you're basing yours are on a cryptic message that even Sasuke didn't quite understand right away(In that same panel; Sasuke: What's that supposed to mean?).
Smoking causes cancer. If you smoke one cigarette then don't smoke at all for 12 years does that mean you'll get cancer as a direct result of smoking that one cigerette 12 years ago? See what I did there?