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A comment on How big is the entire universe?. Parent comment

Re:How big is the entire universe? by jmmcd on Wednesday July 25, 2012 @08:41AM (#4290595)
To imagine a 2d surface closing in on itself, you imagine it in 3d. To imagine a 3d object closing in on itself, you unfortunately have to try to imagine it in 4d.
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Re:How big is the entire universe? by Splines on Wednesday July 25, 2012 @12:03PM (#4291535)
I read Flatland a long time ago as a student and found it enlightening when thinking about 4d.

https://en.wikipedia.org/wiki/Flatland

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