It's not really..levels. It's just there or it isn't. Our knowledge, at least in my time, of dark matter is still very scattered and incomplete. I'm relying on people like Adric and Harper to fill in some of those gaps. But hundreds of years of information...it takes a while. Even for me. [Be a little more arrogant, Capa...]

But I can test for the presence of it by testing how light bends. It's a tedious process, but...I don't mind. Of course, those readings are skewed, I'm sure, by whatever is keeping the deck habitable. I just wish I knew what that was.