Can you theoretically create a universe that will have the same dimensions but will look different? For example, a paper that has a limit, or another similar dimension can it be different?

closed as off-topic by curiousdannii, Frank Hubeny, Swami Vishwananda, Eliran, christo183 May 21 at 13:40

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If by this you mean for example a universe with two spatial dimensions and one of time, the answer is yes- at least in the world of physics.

Physicists often try to formulate their theories in spaces simpler than (three space, one time) when it isn't known yet how to do it in (3+1) space. Then they look for clues in (for example) two-space, one time universes to guide the search for solutions that exist in the (3+1) spacetime that we inhabit.

These simpler worlds are called "toy universes" by practitioners of the art. They are mathematical abstractions and in no sense do they represent "real" universes because they would not support life as we know it.

  • I mean, can our spatial dimension look any different? Can it have other combinations? – Walter W May 21 at 12:30

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