What If the Universe Isn't Flat But a Giant Loop?

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United States What If
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Published on ● Video Link: https://www.youtube.com/watch?v=MzGRkXrfMyM


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Duration: 5:08
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If you got into a spaceship and traveled long enough and fast enough, could you eventually loop back to where you started? Assuming you don't accidentally collide with another planet or star, and that no black hole swallows you along the way.

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