I touched on the concept of time in an earlier post. A lot of people like to think of time as the fourth dimension. Time isn't the fourth dimension, it is simply the way we perceive the fourth dimension.
Now, I'm no physicist. Not even close. I have a degree in political science. Even so, I like to picture the fourth dimension as one of those note paper cubes that people keep next to their phones. "WHAT?!" you're probably thinking. "CUBES ARE THREE-DIMENSIONAL SHAPES YOU CLOD!!". That they are my overly-excited friend, but consider the following and settle down for chrissake.
As three-dimensional beings, we can perceive the first dimension (a straight line), the second dimension (a square) and the third dimension (a cube). What about a two-dimensional being? He's stuck in his two-dimensional square, unable to picture what the third dimension even looks like. But wait, he IS percieving the third dimension...one piece at a time.
That's where the paper cube comes in. Each square of paper represents a frame in time for the two-dimensional being. We, as three-dimensional beings, see the cube as a whole. Therefore, we see the entire existence of the two-dimensional being at once. Nay, the existence of his entire universe at once. He travels through the square, one piece at a time, we see the entire square all at once.
Why should the fourth dimension be any different? Four-dimensional beings see the course of our entire lives all at once, as some kind of big blob of cubes. Our separate cubes (moments in time) stack up together to create some kind of awesome fourth-dimensional note paper...thing.
No I'm not on drugs.