Okay, that seems to clarify things. It has the potential to get messy (where does one draw the line of nexus events? Hitler's mother? His biggest political supporters? His fifth grade teacher?) but simplicity is good for the sake of fiction, so I won't beat that horse too much.

I don't believe that chaos=evil; that would be silly, given my background. Thus I'm still at a disadvantage. But I can suspend disbelief for the sake of the story. It still might provide some confusion, because it's such an unnatural paradigm for me that I have to keep reminding myself of it. But that's okay. I have that problem with pretty much every story with a villain. That's why superhero comics drive me up the proverbial wall, and why I'm so adamant about not having any villains at all. Not even in my superhero comic book.

On the bright side, I'm very much in the minority in this viewpoint. So please leave me to my usual struggles and don't let it affect your storytelling style, because other audience members probably won't have the same complaint.

Oh yes, one more thing: you failed to mention why Josh turned villainous. Is that a story for another day?