I discovered today where all the old stewardesses (yes, stewardesses - too old to be flight attendants) go to die... Delta (more specifically, Delta Express) I thought I had spotted the fossil remains of one, and then she stood up and started doing the safety demonstration. (moved well, for a mummified creature!)
The universe, by definition, is infinite. It is arrogant for us to think mankind can formulate all the questions much less grasp all the answers.