For those who really need something to sit up nights worrying about, here is that Worry you just ordered. To go.
Once on a star, in a remote corner of the universe, some clever animals invented knowledge. But then the star grew cold, and the clever animals had to die.
One might invent such a fable, but still not sufficiently have illustrated how shadowy and flighty, how aimless and arbitrary, the human intellect appears in nature. There have been eternities when it did not exist, and when it is gone, nothing will have happened.
... the Friedmeister ... ( from memory ! )