"The world is, nothing will happen if you just walk through the door. If you want to know if the dragons can punch through your defenses usefully, you want Aurora, not me, if you want to be sure, but - there's some metacausality I don't really like floating around them. Sort of like Callahan's attractor for invariably winning lethal contests, but toned down. They don't have to win, but if you're in a fight with them it does have to be a fight, they've got a metacausal conspiracy objecting to circumventing them completely. I really don't think I like the idea of combining that with torching when they have to share space with humans, however cute the babies are."