A fluneverse is a universal construct in which there are 4 spatial dimensions, defined by a set of four axes mutually orthogonal to each other.


A universe with four dimensions would behave in drastically different ways from the behavior of ours. For one thing, gravity would be defined on the inverse-cube law instead of the familiar inverse-square law, and thus stable orbits would be impossible to maintain, for either objects would come too close and inevitably collide, or be to distant to affect each other.[1]

It is likely that a fluneverse would be filled with black holes separated by vast distances from each other, and therefore no planets will have formed, nor stars or other common astronomical bodies.



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