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How can the net amount of entropy of the universe be massively decreased?
The last question was asked for the first time, half in jest, on May 21, 2061, at a time when humanity first stepped into the light:
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?
Or maybe it could be put more simply like this: How can the net amount of entropy of the universe be massively decreased?
The current answer remains: INSUFFICIENT DATA FOR MEANINGFUL ANSWER.
I just could not resist posting Asimov's "last question" since it is my favourite short story by far and since I have also asked myself if we'll ever find a solution.
After all, if such a question could get an answer, where better than here on TED.com?