As a necessary prerequisite to the creation of new forms of expression one might, I suppose, argue that current sensibilities respond uniquely to the notion of exhaustion as exhaustion, although that does de facto seem rather limiting.
The U.S. withdrawal from the Kyoto protocol endangers the entire process.
Books that have become classics - books that have had their day and now get more praise than perusal - always remind me of retired colonels and majors and captains who, having reached the age limit, find themselves retired on half pay.