It sounds like the fashion industry understands the nature of cycles. I love the phrase "impeccable regularity". The "Fourth Turning" explains the phrase below "you've seen it all before" in beautiful detail.
(CNN) -- "Nearly everything in fashion is cyclical: the clothing, the hair, the accessories, and yes, even the people come in and out of style with impeccable regularity. It's no wonder, then, that plus-size models and their agents are accepting the latest clamor to place larger models in high-fashion editorial spreads -- the first appearing in Glamour magazine in November, the second in V magazine's size issue, on stands Thursday -- with a shrug and a smile. They're hopeful, but if you've been in the business long enough, you've seen it all before."
Entire article: http://edition.cnn.com/2010/SHOWBIZ/01/14/plus.size.models/