I appreciate the opportunity to contribute on this thread. I apologize for the late response as I had to deal with some RL stuff.
First off all, I'd like to point out that the OP has nothing much to do with size comparison statements. So, bringing that up specifically is derailing.
Also, I'd like to clear my own stance on the Yggdrasil's size statements, which I don't believe qualify due to
reasons I explained in the Q&A thread. If anyone has any qualms regarding it you may bring it in that thread, not in this one please.
Uhh, I will not say much here. The 9 realms are already accepted as Low 2-C constructs (3+1D) and explained in the
cosmology page and the
previous thread too.
Bringing already accepted stuff unrelated to OP like questioning the Low 2-C status of the realms, would be derailing. If anybody has qualms about that, make a new CRT, no discussion regarding it here.
With all that out of the way, let's get to what the OP has to offer.
The Premise
So what we have here essentially are Low 2-C structures spatially separated(
they exist in the same physical space and are parallel and never connect each other) and they are also all connected to the Yggdrasil tree simultaneously. This essentially means that the structures are displaced in a higher dimensional space (a 5D plane compared to the 4D realms) that being the Realm Between Realms and Yggdrasil's branches spread through RBR and connect all the realms.
To understand this visually here's an
illustration I borrowed from a comment of DT:
From the looks of it this easily qualifies Ygg as Low 1-C on its own without any extra stuff, since it has to spread through the RBR which we
qualified as 5D.
However, there is a lot of extra evidence I uncovered while going through the cosmology blog.
Secondary Evidence
1.
Not only does this imply qualitative superiority over everything in creation including the 4D nine realms, it also elaborates that each strand of the tree transcends space and time with regards to everything else. It is quite explicit, not vague in any sense on what it means and there is very little room for misinterpretation.
The parts I cut off don't apply, while the bolded parts do.
In short, it matches our transcending space-time standards due to providing sufficient evidence and context.
This evidence alone would qualify for Low 1-C or 5D Yggdrasil, but there's even more to go through.
2.
Being able to keep all of the realms spatially separate across the RBR would itself require the power to affect all of the spatial dimensions of the realms and the RBR across which they are spread. This essentially implies the Light has to be 5D to keep the 4D realms separate across the 5D RBR. If they were less than 5D they would not be able to affect all the axis of movements across which the realms can travel.
The fact that the Light itself is just a part of Yggdrasil implies it too has to be 5D.
3.
To travel between the different Realms Bifrost is needed, which is an energy derived from the Light of Alfheim. Without the
Bifrost's LoA being replenished realm travel isn't possible.
And we concluded from the previous evidence that the LoA is 5D and we need it for realm travel which implies that Yggdrasil's branches itself will have to be spread across the 5D RBR for it to be so difficult to travel to the different realms without LoA.
4.
To shift entire realms the power needs to affect all the dimensions of axis of movement to be effective, further cementing 5D power.
5.
Finally, the branches of Yggdrasil which spreads infinitely also acts as supporting evidence to the above.
Heck, it gives credence to something even greater, that being Yggdrasil being an infinite sized Low 1-C(5D) construct, since we already concluded from prior points that Yggdrasil is 5D, its branches spreading infinitely suggests infinite 5D structure of Yggdrasil.
Possible Counter Arguments
Now, I have expected arguments similar to what was presented in the previous thread, some of which includes line rotated in a 90 degree angle and passing through all the realms, Ygg curving through the 5D space and connecting the 4D realms while still being 4D itself etc. and I have this to say:
All of these are efforts in mental gymnastics based on
False premises in the first place.
The cosmology blog has made it abundantly clear on what it is and what it is not, that it is a tree, it has branches that spread infinitely, and the realms are in the branches and they are not connected to each other except through the branches and exist in the same physical space that being the RBR.
It has some of the most elaborate in your face evidence for Low 1-C, that is constantly hammered to your head by explaining various parts of the cosmology and how they interact with each other and what is possible and what isn't.
Even if we were to assume any of them to be true, like say for the line passing through all of the other realms perpendicularly, it would contradict a simple verse mechanic like Realm travel, because for it to be true, Kratos will always be travelling to the
exact same spatio-temporal instance each time he uses realm travel which isn't what's happening according to the game.
Heck, once Kratos obtains the Unity Stone, he gains the ability to traverse Yggdrasil by literally jumping off one these branches while wielding the Unity Stone’s power, where he spends like a minute falling into the void, passing several constellations and distant dots, and
when the fall finally reaches its end he steps onto what is merely another branch of Yggdrasil.
This, would also be inconsistent with anything like a curve topology since, Kratos himself will have to travel across all the dimensional axis while jumping and not just be restricted to 4D.
In the end all I will say is that while such wacky theories may work, however it would be very inconsistent with simple verse mechanics like realm travel and I suggest we refrain from such futile efforts of trying to impose our own notions over the cosmology regardless of their consistency with the verse.
If any of you have any other different counter arguments, feel free to do so(
with the added permission for me to present counter arguments obviously, if needed)
Conclusion
From the OP as well as all the secondary evidence I presented above, it is sufficient to conclude that Yggdrasil is an infinite Low 1-C structure.
If we try to impose a 4D structure to Ygg after consolidating all the evidence presented above we would end up breaking the verse mechanics as well as completely ignoring the lore and evidence against such a structure.