I think part of the theory behind the "life of the author" is that there shouldn't be a disincentive to produce your work now. If you're a creator of some kind, you might not publish a book you're writing until you think it'll be ready.
In single-author creative endeavors, like book publishing, you want to encourage people to create all they can before they get hit by a bus.
In single-author creative endeavors, like book publishing, you want to encourage people to create all they can before they get hit by a bus.