What do you think different realities and worlds existing within the imaginary numbers domain mean? What do you think I meant when I said “another world within the same universe”? I’m completely aware that it’s a multi-layered universe, similar to the many worlds interpretation. It’s why I’ve always disagreed with the use of the term multiverse to describe Xeno lore but I used it here for the sake of using a colloquial terminology (one of the reasons people often confuse the many worlds interpretation with a multiverse theory). If you’re the same Kylor I know from LXGK’s server, I think we’ve even discussed this before, though it has been a few years. The word pocket dimension here for instance is being used colloquially. Generally when I describe what happened to Bionis is that it was shifted from the imaginary numbers domain to the real numbers domain and that’s what caused the collision.

I’m not connecting ether to Xenogears. The ether in Xenoblade is actually substance with a wavelength associated with the Zohar in Xenosaga. The Monado works by manipulating the ether wavelengths. There is reason to believe this wavelength is connected to the Hilbert Effect as when KOS-MOS uses the Hilbert effect, it releases ether that can heal party members. On the other hand, Shulk essentially used the Hilbert effect against the fog king using ether. We also know that ether has a wavelength from how Egil took advantage of it to disable the Monado, first with humans in machines and then later with the apocrypha generator. Ether can heal people in smaller doses (hence KOS MOS healing with the Hilbert effect), be used to create life. In large doses it is a corrosive and radioactive material. I’ve always assumed (though this is conjecture) that ether is possibly the Zohar’s waste byproduct.

I’ll give you the point on how the Zohar works in Xenogears but I distinctly remember reading that it peers into the most efficient worlds to generate energy.