I find it fascinating to watch a particular stylistic detail be pushed and pushed to the point of absurdity. A good example in fashon would be how far "bagginess" was taken with jeans in urban fashion. One that I've been watching for a while now is the cuff on jeans. The below example isn't so bad. I've seen sillier examples.
On some level it becomes a stylistic arms race, a constant escalation of how far participants are willing to push it.
How long before they touch the knee?