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Several scientific theories predict the presence of extra higher dimensions. Physics has validated (or at least not falsified) a 4 dimensional (3+1) model of space-time, and if string theory is cor...
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#1: Attribution notice removed
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System
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2021-03-30T23:53:17Z (over 3 years ago)
Source: https://worldbuilding.stackexchange.com/a/46259 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/