Totally a guess based on nothing in text aside from the general permeation of earth techniques being adopted across Innworld.
I think a necromancer (and golems for that matter) will learn of ICT networking and apply the concept to upgrade their creations. With every reanimated body acted as a node networked into a greater whole, resources are shared and overall capabilities of the animation gained. >! The best candidate for this would be Pisces given his relationship with earthers, exposure to earth and ICT itself through the [The World of You and Me], and his natural curiosity that drives him to learn theory (like unboxed magical theory, for instance).!<
>!As an aside, I don’t think Cognita networks with her golems in the same way as a modern computer network would. Seems like golems are just peripherals for Cognita.!<