A god-like being has offered to give humanity a wish.
John and Edna, working as night security guards at the British Museum, are sitting in a control room watching CCTV feeds when Edna notices something out of the corner of her eye. She only gets a quick glimpse, but it was almost certainly a person walking around. She quickly looks for and identifies Colin, another guard who is walking through the museum, but he is in a different section of the museum.
Edna: John, I think I saw someone near the Rosetta stone. Can you get Colin over there to check it out?
While John calls Colin, Edna continues looking for the intruder. After a minute, she sees an unknown man standing in the middle of the room with the Parthenon Marbles.
Edna: John, we've got a man in with the Parthenon Marbles. Get Colin over there to...
Suddenly, Edna realizes that her eyes are closed. She opens her eyes to find herself still sitting in her chair in the control room. Confused, she looks over at John, but he looks just as confused as her.
John: Did we both just black out? Last thing I heard you say was to get Colin over.
As Edna nods, a series of expletives comes through the radio.
Colin: What the
expletivejust happened to the museum?
Startled, Edna and John turn to the CCTV feeds and stare at what greets them. The entire museum looks different. Artifacts have been moved around. Rooms have changed shaped.
And the artifacts themselves have changed. The Rosetta stone, which used to be missing part of the original stone, is now whole. The Parthenon Marbles, which used to be damaged and missing the original paints and colors, are restored. Ancient artifacts look like they had been made just the other day. Missing pieces are no longer gone. Everything is in absolutely pristine condition.
Rewinding the feeds reveals about 10 minutes of static, corresponding exactly to the time during which Edna, John, and Colin all blacked out.
The next day, all eyes are on the museum. The tapes of the CCTV feeds are sent to experts to be analyzed, the guards are interviewed extensively, and all possible explanations are explored and discussed by everyone. There's hardly anything else being discussed that day.
The following day (~1.5 days after the event), a note is found delivered to every single news agency worldwide, translated flawlessly to local languages. This is how it reads in English:
It doesn't matter who I am. I am a wanderer, only passing through as I search for my lost home. I am not your God, but in terms of what I am capable of, to think of me as a god would not be very wrong.
I am responsible for what happened at the British Museum. I have restored a piece of your history to demonstrate my good will and my capabilities.
Before I move on, I will grant humanity a wish. There are limits to what I can do, and limits to what I am willing to do. I will let you know if the wish is one that I will not grant.
Humanity is still young. My desire is to help humanity grow.
I am not bound to follow the wording of your wish. I will not doom humanity simply because of a poorly worded wish. I will follow the spirit of your wish, and grant it better than you may have conceived.
Do not bother trying to trick me. I know your motives, and you cannot fully understand mine. Things such as your "reverse psychology" will not fool me. Likewise, I will not trick you. I will not be able to please everyone, but most of you will be pleased with the results of your wish.
I am aware of your stories of genies. Attempting to wish for more wishes is the surest way to try my patience and cause me to leave before granting a wish.
I am patient. You do not need to fear that I will get bored and leave before humanity has come to a decision.
How will humanity react to this opportunity, and what will they wish for?