We all know that we live in a universe that has at least 3 dimensions of space and 1 dimension of time. We can look up or down, move forwards or backwards, go left or right, and while we can move forward in time at different rates (depending on our speed and proximity to massive objects), sadly, when we are dealing with the dimension of time, we can only move forward. These seem like absolute facts. Immutable truths that govern the underlying physics of our universe; however, dimensions are simply the different facets of what we perceive to be reality.

And here, "perception" is the key.

Though we are immediately aware of the three spacial dimensions that surround us on a daily basis—those that define the length, width, and depth of all objects in the cosmos—beyond these three visible dimensions, scientists believe that there could exist many, many more. However, these are beyond the bounds of our perception. They are nearly impossible to imagine. It is like trying to picture a color that you've never seen before.

Here, Alex Rosenthal and George Zaidan take us on a journey to Flatland, a place of two dimensions. They show us what our world would be like if it was, well, squished down a bit...all the way to a place where only 2 spacial dimension exist. Then, they take us back up, showing us what the universe may look like—may be like—beyond our own 3D experiences, beyond our limited perceptions.

if you prefer reading material, you can read about a universe with 10 dimensions here.

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