You’ve probably seen black goo in entertainment for the last few years. After researching it for a while it’s my opinion that the Black Goo represents graphine nanotechnology
Culmination in my hypothesis AI is to summon the demon(as Elon Musk said), that will then form a false aethyr through the Internet of Bodies and 5G as visualized here:
However in the Kpop Aespa(Aethyr?) universe the god they attempt to rebirth is Naevis, a female goddess. Which then led me to Sumerian Egyptian symbology: