I'd like to know who wrote this old short story and its name. I read it 30 years ago or so and I'd love to read that book again.
As far as I can remember, it told how the world ends because there were no more jokes. Jokes have been an alien experiment conducted on Earth and, for a reason I don't remember, at some point they decided to finish it, so people can´t tell new jokes.
Sorry I can´t remember anything more.