Board Thread:Speculation House/@comment-6490434-20130410061505/@comment-10390252-20150407092841

The more I think about it, the more I think that Dust is native to the Moon, not Remnant itself. My theory remains that Dust came to Remnant as a result of the shattering of the Moon. The dust fell both as meteors and as micrometeoric dust onto the surface in huge quantities. I also like the thought that the Grimm are a fallout product - psuedo-life given form by negative human emotions (the 'Monster of the Id') energising via Aura large concentrations of Dust.

I just think it would be ironic if humans had spent centuries or even longer locked in a war with a product of their own self-loathing, hatred, envy and greed.