What if the doom of the universe -- or its salvation -- didn't depend on humans?
What if cats were far more than we imagine?
What if- But enough of this: At the end of the universe there is a Mountain. Every thousand years, a bird flies to strop its beak on that mountain. When the mountain is worn to nothing the universe ends. The mountain is down to a few grains of sand.
The only hope of survival for the entire universe...