For example, one can extrapolate this concept, and find certain similarities. I for one, had great periods of creativity as a musician, and of discovery of new and exciting bands and artists right before stock market peaks. Assesing me personal feelings and appreciations, I can see that most of the artists I enjoy, and their best work in my opinion coincides with these periods, leading to a slump, after the peak.
Nowadays, I find myself in such a slump, but as an individual actor, I'm also part of the whole, and it's easy to see the similarities in different fields, like arts, economics, politics, culture, showing these same cycles of boom and bust...Certainly an interesting phenomenon.
What is your take, from your particular field? Perhaps someone can comment further on the subject.