9. Of all the planets, in all the galaxies, in all the universe, they landed on ours.
There's nothing more exciting—or scary—than the idea that some other life is out there. If far more technologically enhanced beings decide to make our home their home, we probably won't have much say in the matter. National Geographic explored a plausible timeline of the day we make contact with extraterrestrial intelligence, and their outlook is pretty grim. Like an awkward family reunion, they'll want to raid our fridge.
As great as it would be to finally put a stop to the question of whether ETs exist, they're probably the ones with the technology. We're the ones with the resources. Unless these aliens enjoy sharing, we’re toast. Should a fleet of ships start landing from the sky, your best bet might be making yourself a good pet.
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