problem here right so there there was clearly this is not an iid resampling it's not ID resampling because that can Ludvig or not we don't know who the toronto folks were probably some paid undergraduates and they're not that kind of like who have never been to Toronto right yes so there is a there is a yeah so it's not perfectly ID right this is a great question but we'll come back to it let's come back on the empirical training possibly yeah but no you can't tell a difference if you train a classifier do you sample