# Why is Space 3D? [duplicate]

Why is Space a THREE DIMENSIONAL ENTITY?

I know that In physics and mathematics, the dimension of a mathematical space is informally defined as the minimum number of coordinates needed to specify any point within it

I'm a student and I have tried to find the answer to this question but I probably didn't get any answer that I understand...

So pls help me with this as I'm still a beginner here!

P.S : There's a similar question at Is 3+1 spacetime as privileged as is claimed?

but I kinda didn't get my answer there if there's anyone who can explain in a simpler manner request you to

• Possible duplicates: physics.stackexchange.com/q/45495, physics.stackexchange.com/q/10651 Feb 23, 2021 at 5:13
• Actually, I didn't get the answer right there, it just went above my head!
– SPm
Feb 23, 2021 at 5:15
• It is an experimental fact. In Physics we use experimental (input) data in our models. In particular, in Geometry, the space dimensions is 3. Feb 23, 2021 at 5:43
• So anytime can we have more dimensions coming up?(in general space)
– SPm
Feb 23, 2021 at 5:49
• Why 3 dimensions? In large part, because that is all you can perceive. Various theories have space a 7, 11, even 21-dimensional. Are the other dimensions actually curled up into themselves, or do we just perceive it as such from our limited 3(+1)D viewpoint? These questions are hard to answer, and even harder to prove. Feb 23, 2021 at 7:33