@andy, @toth... That moment when a smartass makes fun of you and explains the whole situation AFTER you find out yourself
... seriously? exot, like some other fluids(water, ln2, bizr, etc) can become solid when cooled, though bizr freezes when heated...
Solid exot does exist, apparently. I'm an idiot. I had no idea that it could freeze.
What I can't figure out is how he got the EXOT to stay there. I expected there'd be a DMND grid or something creating cells for the exot to be in, but there is none. Could it be antigravity? Nope, it works under all forms of gravity. Air (somehow?!) has no effect on it. Congratulations, sir. It appears that you have made solid EXOT.