Depends on the industry.

In EDM , I find that guys have limited tools and get good at one thing, and then that thing stops being relevant and they disappear. They get into drugs and drop of the map. Realize they can't handle the touring and do other styles of music or retire or stay relevant and generally better with many just coasting doing enough to stay relevant but nothing ground breaking.

I think everyone has those periods of creativity which are generally the result of a lot of work and it isn't always sustainable or maybe I should say rarely.

___________________
"This is why Superman works alone." GC
old stuff from days gone by (2001-2004)
Mad For Brad's gay little contest