Aether

Aether refers either to the unbound aether that fills all of space and permeates all things, or to solid aether, an immutable and imperturbable substance.

Unbound Aether
The Aether is a ubiquitous field that can hold magical Charge. Neutral Aether is equivalent to empty space, not affecting matter or interacting with itself in any measurable way. It enables the magical physics of Erwt to resemble rational physics of worlds like Earth.

Solid Aether
In its condensed, solid form, Aether is a hard material. It is black, quite reflective, and slightly matte. Edges and points emit a slight purple, blue, or green glow. Aether has never been scratched, dented, bent, or broken by physical means. It is affected neither by heat nor cold, neither blocking radiant heat, nor conducting it, nor holding and re-radiating heat. When pushed, it does not move. It does not fall due to gravity.

Only magic with especially high aetheric affinity has been shown to affect Aether.