Tesseract

Now the issue that a space has more than three dimensions is rather like the utlimate question, does god exist?
How could we ever know the idea if, as it seems, we can never experience them directly?
Let's take an ordinary square and project it into three dimensions.
That's how we get to the cube.
Now extending this cube to a fourth physical dimension we arrive at a hypercube, also known as a tesseract.
We can not see a tesseract because you and I are trapped in three dimensions.
All we can witness is the shadow of the hypercube, much like a two dimensional being would experience a cube.
Perhaps one day in the in the far away future humanity will evolve to a point where it will be possible for us to break the boundaries of infinate space and time.
Only then will we be able to understand the real tesseract.