How many spacial dimensions does our universe have?

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Any one consider that our experience of time in a 3d material plane is a projection of a higher dimensional space? As if to say, time is an expression of space and space is an expression of time.

Take for instance what we know so far about quantum physics, that the unobserved atom is a cloud of potentiality, but once we measure it we get points that appear to flux in and out of existence. As if time, as we experience it, is observed measurement of potentiality, thus giving the same effect as a 3d sphere projecting into a 2d plane. To experience that phenomena from a 2d perspective, the sphere appears as a circle violently erupting out of nothing, quickly expanding then collapsing back into nothing. The 2d observer would be shocked at this quantum like weirdness. So, the 3d shape is much like the potentiality cloud described in quantum mechanics, its there, encompassing a space we cannot perceive, and once we observe we can only experience that which collapses into our perceivable time and space. That 3d sphere moving through that 2d plane shows that time is a projected experience of a higher dimension shape.

Perhaps time is an illusion afforded by our limit of dimensional observation of a higher shape. Thus negating the concepts of a linear progression of experience with a past, present and future, as this has all already happened and transpired in infinite configurations that could be expressed as a higher dimensional fractal geometry.

Its a concept that gives credence to something as mind bending as retrocausality: https://phys.org/news/2017-07-physicist ... uture.html

And helps explain the discovery of time crystals... http://bigthink.com/philip-perry/discov ... -continuum

This stuff fuels my existence like nothing else, hyperdimensional spacetime/timespace is my jam.

The Majority of scientists think there are 4 dimensions with the 4th being spacetime. Then you have the string theory crowd that actually get 11 dimensions . Course none of them can agree on this but there are valid arguments if you take the time to read about it. Its all very deep once you go down the rabbit hole you can find yourself getting lost in the quantum world but as I said most people stick to the 4 dimension for now. Personally I like the sound of 11 dimensions and all the mysteries that go with it.

Greetings.
Overall, the need to add new dimensions came from the fact that 4 dimensions are not enough to encompass all the equations of the 4 great forces in order to obtain a theory of everything. It was discovered that the equations aforementioned fit better everytime we added a new dimension until we arrived at 11.