Ok. Now I'll try to make sense of the Witch's interpretation of the model. I'm bad at spatial four-dimensional thinking (space-time thinking is still OK), so I'll need your opinion.

Wicked Witch wrote:The problem with this is that wormholes only work within the four dimensions of space and time. Wormholes will either bridged distances in 3 dimensions or connect alternate universes with your universe.

You can break through the connecting walls of each alternate universe, but you cannot connect to a universe that is completely separate from your own. For those of you who are familiar with four dimensional geometic shapes: instead of connecting to another cube in a tesseract, I need to connect to a completely different tesseract and cross what could be considered a fifth dimension – this White Void, or Fourth Wall, or what have you. Wormholes can’t do that, so I’m still stuck here.

Ok. By the second sentence, she lost me.

So our universe is represented with 3 spatial coordinates and 1 temporal coordinate. Makes sense.

Now adding one more dimension would represent our entire universe and its history as a 5-dimensional plane. Travelling along the 5th axis would mean travelling between the parallel planes representing other universes (oh hey,

that is why they are called "parallel worlds"

).

The way I see it, we may divide the 5-dimensional space in two by an impassable (via wormholes, or whatever) 5-dimensional plane which we call The White Void. The halves of the metaverse are still infinite, so it's ok.

Travelling along the 5th axis in the fictional half would mean travelling between different stories.

...and now that I have to include the intersections of the fictional universes, canon weldings and whatnot, and especially nested universes, I'm officially baffled. Considering that every 4-dimensional space in the fictional half should still have its sub-universe... Ok, I'm stuck in my own words. Basically, I'm saying that our model implies infinite-dimensional space, no matter how hardcore it may sound.

Now is your turn to say it in a way that actually makes sense.

UPD: I'm not sure what she meant by "separate tesseracts". If she meant separated in the 5-dimentional space - most of them are. If she still meant 4-dimensional one, then the tesseracts would have to be finite, which is hardly correct.