attackers trying to break your system and you order the defender trying to build a resilient system there's also domain adversarial learning which is an approach to domain adaptation that looks really a lot like Ganz the the author's had the idea before the game paper came out their paper came out a little bit later and you know they they're very nice and sighted again paper but I know that they actually had the idea before I came out domain adaptation is when you want to train a machine learning model in 1:1 setting called a