Quora answer: What would be the ultimate question?
It has been said that the ultimate question in Philosophy is “Why is there something rather than nothing?” (Like Real numbers but more so)
See Heidegger Introduction to Metaphysics http://en.wikipedia.org/wiki/Introduction_to_Metaphysics_(Heidegger)
The pen-ultimate question is “Why is there IS?” i.e. Being. (Like Transcendental numbers only more so)
The trans-ultimate question is “What is Absolute?” (Like Transfinite numbers only more so)
The infra-ultimate question: “Existence?” (Like Surreal numbers only more so)
http://books.google.com/books/about/Life_s_Ultimate_Questions.html?id=kaDF-8aFTXAC
Assortment: http://www.squidoo.com/ultimatequestions
http://www.quora.com/Topics-Quora-feature/What-would-be-the-ultimate-question