out you know well where you want to rank the content there is no differentiable objective function because you don't know what people are gonna are gonna do so you can use whether they click on a piece of content or not as kind of a reinforcement and then optimize the the policy as to what you show to people to maximize the to maximize that but these are you know on these situations where we get lots and lots of feedbacks and otherwise it works for games because you can get wishes to look to to play games really quickly and so you so they can