Sword of Aldones is ... well, I keep it on my mental bookshelf beside Alanna: The First Adventure to remind me just how awful a writer's work can start out, and how wonderful it can later become anyway. (Only Sword starts of far more awful than Alanna, which is at least coherent.)

I think Cherilly's Law ("Only a starstone is unique; everything else has one and only one exact duplicate ...") is silly (because why is this happening on the level of people and water fountains, but not of either atoms and molecules or buildings and cities). But I can't hate it too much, because my first sale ever was called "Cherilly's Law"--it sold to the very last Friends of Darkover anthology, and dealt with what would happen if Cherilly's doubles turned out to not only be "more alike than twins," but to be actual twins.

So I'm kinda fond of Cherilly's Law, even if it does make no sense. :-)