Higher dimmensions and parallel universes.
This is theoretical. I don't have the math to back this up
If any of you have taken an elementary school math class you'll know about length, width, height.
If you've finished the courses for high school math you'll know how to make two dimensions (length and width) and make numerous relations with them, and limited relations with three dimensions.
If you've taken a look around you lately you'll notice three spatial (space) dimensions and time.
What if, however, we throw in another dimension? What would it be? What would we call it? What lies in it? Better yet, what the hell would it look like?
For the sake of argument let's assume there are four dimensions but we can only percieve three. This is natural; how can we possibly understand it? It would be like telling a square he doesn't have to go up, down, right, or left to get around an obstical and he can merely walk beside it. A two dimensional figure could never possibly comprehend another dimension. The same follows with us: How can we possibly understand another way to move through space?
Let's start with a fold out. Think of a square: if you fold out its sides, then you're left with four lines. If you fold out a cube, then you'll have six squares. If you unfold a hypercube (a 4-dimensional cube) you will have numerous cubes. No matter how hard you try, you'll never be able to picture the fourth dimension, just like a square will never be able to imagine, no matter how you explain it, a third dimension.
Why can't we see it? Why can't we experience it? This is where the knowledge of a graph comes in. You can have three (x,y,z) coordinates at most, which means you can at most have three axes (plural of axis, pronounced like axees.) What makes multiple axes? Notice what the X axis and the Y axis have when they cross- a ninety degree angle. If the Z axis intersects both of them it will also create a ninety degree angle. Each axis will always be perpendicular to another. Try as you might, you can only have three axes because if you add in a fourth you won't have a perpendicular line that intersects the other three at the same time.
Anybody with any knowledge of imaginary numbers will tell you that you can't graph them (an imaginary number is an even root of a negative number, such as the square root of negative one or the forth root of negative twelve) with a graphing calculator. Most calculators can't even proccess imaginary numbers, and graphing calculators have a special setting one must use to have them as an answer. Returning the the imaginary graph, what if the graph of an imaginary number represents a higher dimension? Would this not explain why we can't experience it? The answer, of course, is yes! We cannot graph imaginary numbers, with our three axes, and are unable to see a higher dimension in space.
If you haven't caught on at this point, I'm saying that imaginary axes (axes that have intervals of imaginary numbers instead of real numbers) are the axes of higher dimensions. Since imaginary numbers always come in pairs (thanks to the quadratic formula), math says we could have a total of five dimensions. However, this is where human reason comes in. If there are three "real" dimensions, could there not be three imaginary dimensions?
Think for a second. Three imaginary dimensions with imaginary matter in an imaginary universe. This sounds suspiciously like a parallel universe, does it not? Quite literally, and imaginary universe could lie on the same plane as our real but we would never be able to interact because we are parallel, and that we are imaginaries of each other (we are their imaginary universe and they are ours.) However, all parallel functions have something in common- an axis. One of these is time; a property of anything that exists.
That's one axis down (where our universes are lines on the graph) with one to go. There must be one other axis for anything to be parallel to something else. What is this other axis? It is something that governs both everything that could possibly exist. However, we will never know what this is without going to another universe. Anyone will tell you this is impossible- in order to cross over, the unierses must cross paths, and this is impossible since they are parallel! The only way to be able to get into the other universe and still have them both parallel is to leave our universe, cross the infinite emptiness of the plane, and enter the other universe. Possible? Maybe. Will we ever know? Probably not.
