This is wrong on multiple levels. Second Key event happened in Current Era while Su is working on project valuka, one of many projects to carry out in current era.
The dialogue came from version 5.6 addition of rememberence vessel and
quoted word to word from
second key manga.
Yeah - my point is that Second Key happened in the Current Era while Su's simulation should be synced up to a previous version of him in the Previous Era. There'd be no way for the simulated Su to have the knowledge of the Current Era Su, but it's beside the point. What he's saying here is vague.
Regardless I don't think it changes the conclusion.
With HG2 being connected, sure, I have no choice but to concede despite the grievances I have with the WoH being defeated in both stories yet the Honkai is something above the Tree via the Cocoon and the Will of the Honkai in GGZ.
So the sea was made by Azathoth so chainscaling at least holds up.
The only part I see not holding up is the SoQ having a higher realm and it being the area Su falls into (if that's what's being asserted), not because I don't believe it, I do, but simply because the 'proof' is vague and inconclusive. It's not elaborated on and it's all too implicit.
Proving that this Chaos area is another superior layer in the SoQ is contingent on Su's statements. All the GGZ evidence asserts the Primordial Sea and the SoQ is the same through holding the same functions, yet Su asserts it to be loosely above the SoQ, but Su's statements are vague and hard to go off of.
It just seems rather inconsistent with the argument that the Tree grew from the Primordial Chaos which is the SoQ... yet Su tries to assert it's a different area, and it seems necessary for it to have two different layers because otherwise it conflicts with the current SoQ scaling if it doesn't.
My argument here is Su's statements are too vague and don't directly talk about dimensionality, just 'above' from his experiences here. Not even
this statement seems to directly discuss dimensionality. It's merely talking about a truth or law.
I'm neutral on this because while I believe it is probably a higher dimensional space and that it could be in the SoQ it's not directly confirmed in a discussion about dimensionality, all the statements are far too open to interpretation.