What Shape Is the Universe? A New Study Suggests We’ve Got It All Wrong https://www.quantamagazine.org/what-shape-is-the-universe-closed-or-flat-20191104/ … via @QuantaMagazine
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But... isn’t that....
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How could the universe be flat? If it is constantly expanding in 3 dimensions from a point from the Big Bang or big inflation, wouldn’t that mean of COURSE it’s a sphere? Am I thinking in too few dimensions or something? How could it possibly be flat?
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Good question I think you’re conflating the shape of *space* with the shape itself, when embedded in higher dimensions Sounds fancy, but think about it like this: how could you tell you were living on a sphere without the ability to “look up” (1/2)
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