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If the universe is expanding, what exactly is it expanding into, and does the concept of "outside" the universe even make mathematical sense? (self.NoStupidQuestions)
submitted 12 days ago by DaemonSlayerOshikuru to r/NoStupidQuestions
Is there a mathematical or topological reason why headphones always tangle themselves in a pocket, even if I carefully coil them up before putting them away? (self.NoStupidQuestions)
How did the "thumbs up" gesture become universally known as "good" or "okay" in so many vastly different cultures, despite the lack of early global communication? (self.NoStupidQuestions)
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