friedmann... thats almost my last name :-$

I've always thought of it like a sorta 3 dimensional Pac-man, you reach the edge and end up back where you started

 

 

 

I've had similar thoughts.

 

 

 

Imagine a 2d person living on a 3d sphere.

 

 

 

To him, the universe seems to go on endlessly, whereas we can clearly see the boundries.

 

 

 

 

 

 

 

It's possible that our universe is a 4D sphere. Meaning we could travel in any direction and we should end up where we started.

 

 

 

 

 

 

 

Of course that's assuming the universe is shaped like a sphere.

 

 

 

If it weren't, then space would be warped and twisted in ways that would make absolutely no sense to us humans.

It's possible that our universe is a 4D sphere. Meaning we could travel in any direction and we should end up where we started.

 

 

 

 

 

 

 

 

 

 

my brain cant process a 4d sphere.

 

 

 

 

 

 

 

your idea is good though

Well, I don't want to go too far off topic.

 

 

 

 

 

 

 

We can't actually see an entire 4d sphere. We can only see slices of it that pass through our 3 dimensions. If we sliced an Onion into perfectly thin layers, they would look like circles. Similarly if we sliced a 4d Onion, we would get 3d spheres.

 

 

 

 

 

 

 

There are many theories supporting the idea of a multi dimensional universe.

 

 

 

 

 

 

 

It does make you wonder about where things in the universe come from.

 

 

 

Like antimatter.

 

 

 

What if a higher dimensional alien just "lifted" a piece of our world into the 4th dimension. To an observer on Earth, it would look as if a star just dissappeared.

 

 

 

 

 

 

 

What if matter could leave our dimension as well? This might explain the big bang theory, and how a tiny ball of energy is able to expand to fill our current universe.