You should ask it: "Will mankind one day without the net expenditure of energy be able to restore the sun to its full youthfulness even after it had died of ol

You should ask it: "Will mankind one day without the net expenditure of energy be able to restore the sun to its full youthfulness even after it had died of old age?" Long-term, that would be the most useful possible way to spend the money. (Source: http://www.multivax.com/last_question.html http://www.multivax.com/last_question.html)