we respond supervised learning because these albums are less patrol but they can be sort of silver result where the bigger the model the better it does and in fact one interesting historical aside so see part n we actually went back and historically creates though you know I mean we like to publish paper and saying my oberyn's better than yours yours valine whatever right went back and traced all the sequence of papers with you know person a published as a result on C far person B published paper saying oh I did better than person C published