Dimensions and Realities

The differences between **Dimensions** and **Realities** can sometimes be confusing. When you start to talk about *multiple* and alternate realities & dimensions it can get straight up weird! This page is here to try and get us all on the same page (especially as they pertain to the SIRCA system)

## Dimension

**Dimensions** are a bit easier to understand than realities for most people. When you think in terms of a 2D animation vs a 3D animated movie and how things move it terms space and direction. This is very much what we're talking about. It's simplest to just thing of dimensions in these terms.

SIRCA-2222 exists on a three dimensional space (3D), you can move left, right, up down, backwards, forward (though there's a limit to how much you can go "up" without help from things like ladders and airplanes). Our Floofy frens in SIRCA-1111 on the other hand, live in a two dimensional space, they are impopssibly flat, have practically no weight or mass to speak of, and can really only move left/right up/down. If you looked at a floof from the wrong side it would seem to disappear!

## Reality

In the simplest terms, **Reality** is the sum or aggregate of all that is real or existent within a system, as opposed to that which is only imaginary. In physical terms, reality is the totality of a system, known and unknown. Or, it's the state of things as they exist, as opposed to how they could possibly exist. Reality is, well, real.[2]

An **alternate reality**, also known as a **parallel reality,** **alternate dimension**,**,** **parallel dimension**, **alternate universe**, or **parallel universe** (whew!), is a self-contained plane of existence, co-existing with one's own. The sum of all potential parallel universes that constitute reality is often called a "multiverse".

The Floofies and Hoomans exist in a parallel dimesnion of **time**, but they live in an entirely different dimensionalal space (2D vs 3D) and are classified by the SIRCA system as being parallel realities.

## Spacetime

In physics, **spacetime** is any mathematical model which fuses the **three dimensions** of **space** and the **one dimension** of **time** into a single **four-dimensional** manifold.

Scientists in SIRCA-2222 have recent posited that spacetime at the tiniest scale may actually be two-dimensional.

Floof scientists have of course always known thes! Planet Floof exists in **two dimensions** of **space** and **one dimension** of **time** in a single **three-dimensional** manifold. Floof however is still classified as a two-dimensional reality as the SIRCA coordinate system is based solely on space dimension (all realities in the SIRCA system (currently) exist within the same dimension of time).

## Reference

1. ↑ Carlip S. (2010). "Several lines of evidence hint that quantum gravity at very small distances may be effectively two-dimensional. I summarize the evidence for such ``spontaneous dimensional reduction,'' and suggest an additional argument coming from the strong-coupling limit of the Wheeler-DeWitt equation. If this description proves to be correct, it suggests a fascinating relationship between small-scale quantum spacetime and the behavior of cosmologies near an asymptotically silent singularity." *The Small Scale Structure of Spacetime*. - arXiv