How do psionics differ from magic in this universe?
no one's gonna gut ya if you call Psionics Magic, but in all technicality;
Psionics are the manipulation of the world around you in a way that obeys the laws of physics. Psionics must be mentally applied to happen and cannot be "sticky" nor truly enchant something.
Magic, meanwhile, are almost corruptive, illogical happenings in the universe that disobey the laws of physics, and aren't necessarily psionic. Magic is dangerous because it's unpredictable. Many liken Magic to "glitches" in the universe.
A good example I like to use to compare the two is the Infinite Water Problem. If I have a vase with water in it, I can use my Water Sembla psionics abilities to move the water out of the vase. with MORE psionics pressure, i can even make the illusion of endless water pouring out of the vase.
With MAGIC, however, endless water will be spawning out of the vase without any psionic pressure. it's just coming out.
Psionics require that constant thought application, Will, to happen; on top of that, the water used in psionics is instantaneously grabbed from elsewhere in the universe, travels through the mind realm of Cerelain, and appears where you want it summoned. This is to keep the universe balanced, as no new matter is created.
With Magic, not only is no psionic pressure spectrum applied to make more water appear, this endless stream of water is being actively created as new matter.
Due to this, Magic is deemed dangerous and is stamped out when found. Magic specialists, called Alchemists, actually do their best to keep it from cropping up. Psionics are reliable and predictable, thus it's used over Magic.
Anyone found using Magic without an Alchemist license is to be detained and examined, either by a Kraizen prebrand, or an Omni postbrand.