to change if I know the wheels turn this way I can make a better prediction about how the world's going to change I might also be able to do cool things like if I could sort of fictive Li imagine like conditionally generate if I turn the wheel like this what would the world look like so this is something we started doing just because it made sense from a machine learning standpoint and no big surprise when you don't have a friend's copy which is basically the sort of vanilla pret net you get certain convergence over time you know so you