Do you really believe there is a distinct fourth state of matter? I haven’t thought about the possibility in many decades. How is plasma different from a gas? Enough so to be a new “species”?
And as for Ylem- big bang... really?
"Plasma (from Greek πλάσμα, "anything formed"[1]) is one of the four fundamental states of matter, the others being solid, liquid, and gas. A plasma has properties unlike those of the other states."