There's a paper linked to here which he says contains all the "spoilers": http://arxiv.org/abs/1403.7048 http://arxiv.org/abs/1403.7048 > If you are impatient

There's a paper linked to here which he says contains all the "spoilers": http://arxiv.org/abs/1403.7048 http://arxiv.org/abs/1403.7048 > If you are impatient and want to get to the conclusion quickly, here’s the link to our paper where the basic theory is explained (Spoiler warning!). We will also discuss several applications of graphical linear algebra that have been developed in recent years.