Honestly we need to better understand how tiers work on this site before jumping on threads, especially higher tiers such as these, also a very good explanation page should be done with actual examples because as of right now people cast votes and opinions
based on their own interpretations of the system rather than the explanations of the knowledgeable members who made the system. Hopefully Ultima fixes that with his new changes cuz God knows some people like to make things way harder than they need to be.
Now, bear in mind all I will say comes
from reading several threads and how they came to be accepted to make this post (there are more but got lazy linking them), including the words of several staff members (specially DT, because he is the expert on this).
Let's begin.
The Demon World
How does a multiverse work? Well it's a bunch of 4-D constructs (your standard Low 2-C universes a.k.a. timelines) displaced across a 5-D axis. The difference between Low 2-C/2-B/2-A and Low 1-C is that this 5-D plane is on insignificant size in tier 2 while it is of significant size in tier 1.
In our case we know the Demon World has several realms within it, some of them are infinite 4D constructs and despite that they don't intersect with each other despite that. Why? It's because they are in a 5th dimensional plane that prevents them from interacting with each other.
Sonic explained it all here (in fact he did a good job with it all).
DT explained it
here. The main idea is that no matter if these 4D spaces are infinite or not, what matters is the size of the 5th dimensional axis.
After all that's the whole reason why GoW got 5D.
To make it short the Demon World is the higher dimensional (5D) axis in which 4D constructs exist and extend infinitely without interacting with each other. That on it's own can be 2C, 2B or 2A depending on the number of universes because we don't know the size of the Demon World... do we? (Yes, we do)
Back to what
DT said: "Multiple timelines do, in any case, exist in 5D space. But not in a significantly large 5D space."
But what exactly constitutes a "significantly large space"? According to
this thread, to be of significant size is to be infinite in size, other than that it's
only needed to be of "significant magnitude" whatever that can be or "very large.
In this case the demon world is actually infinite in size (part of the scans in the OP and in
Sonic's latest post) which can be considered of "significant size" hence being acceptable as a Low 1-C space. 5D of significant size up to this point.
It should be noted that, in the previous downgrade thread the demon world lost it's tier 1 status not because it wasn't accepted as infinite but because the standards had changed and being infinitely bigger alone wasn't enough proof.
The Overarching Timeline
So... In DMC we have quite the cosmology. Standard universes, the higher plane that is the demon world, a dimensional wall, a gap between realms, a super space that holds all of them and the multiverse.
In this instance I like to refer to that super space as the Overarching Timeline. Basically this space is to the demon world what the demon world is to the universe inside it. A higher dimensional axis in which the demon world extends infinitely without interacting with certain places.
Before that let's state the contents of this spatial plane.
- The Demon World: a 5th dimensional plane
- The Human World: a standard Low 2-C universe
- A dimensional wall that prevents demons from crossing from the first to the second world.
Just like how
a standard tier 2 construct is displaced across a 5th dimensional space the demon world needs to be displaced across a higher dimensional axis. In this case it would be a 6th dimensional space. Now, following the same process as before, for this to qualify it would need to be of significant size/magnitude.
Sadly in this case we don't have any direct statement about it's size unlike the demon world but we can infer it to be of significant size. Why some may ask?
The demon world, despite being extending infinitely in the 6th dimensional plane has some places that are unreachable, one of these is
the gap between worlds. Demons, despite being able to traverse the demon world to the human world are unable to reach this gap between realms indicating there is a significant size to cross in the space that holds the demon world and the human world.
At the very least the Overarching Timeline is large enough to hold spaces that go infinitely inside it while also providing spaces inaccesibles to the others which, according to DT in the links above would be enough.
The Multiverse
Now, the multiverse is basically a collection of those super timelines all displaced across a higher dimensional plane. In this case we know the timelines never interact with each other (bar the use of a very specific item in verse) so while it's impossible for them to interact normally and even present changes in their structures compared to the mainline we don't know if the space in which they are displaced is of significant size.
If it were to be assumed to be so then the space would be a 7th dimensional axis (of significant magnitude) that holds an unknown amount of 6 dimensional timelines.
Beyond space and time
According to our standards "transcending space and time" is a very vague statement by itself and can mean multiple things depending on the context and usually requires Qualitative Superiority to land us a higher tier, generally +1D. I'm not too keen on arguing this part down considering the latest tier system thread and how both transcending space & time and QS will automatically land you 1-A.
Considering
there is a thread about it going on exactly right now I rather wait and see what the new standards will be and how this can be argued.