I mean, we know enough to see the similairty. That stood out to me honestly when I first saw Liminal Exaltation described. The patron uses the human demiurge to facilitate the Exalting of of a target human-enough construct. For Alchemical Exaltation it is basically a golem, the Liminal is an aimated corpse. Both create a new indivdual with a connection to but not idenitifed as the source of their materials, and whose powers are impacted by the initial conditions of their construction.
The black boxing of the Dark Mother doesn't, to me, mean much difference from it nad Alchemicals. So again, what is the difference here besides knoweldge gap? Because again, what stops from madlibbing the prior post tojust be Alchemicals, Autochthon, and so on?
This is very much explicitly not the case. The planetary gods found and utilized it. Autochthon is never mentioned in either its discovery or use.
Is that from the Exigents book? It's surprising that they've changed the creation of Exaltation to not require the input of Autocthon.
Details are a little scant, but we can sort of piece together enough about her nature to be going off of until we eventually get a Liminals book. She's a truly ancient being who doesn't belong to any of the major categories of big ancient being, who had a powerful association with Lethe and the pre-Neverborn Underworld.
It's good to see that a description of her is now in a published book, though again it's surprising to see the creation of exalted without Autochton's influence, by something thatand without the diminishment that other patrons have had to go through.
I hope we find out more about Liminals in the Abyssals book, since it's a lot closer than the Liminal one.