moving forward I'm not sure Jonathan and I will talk about how we teach this to our undergrad machine learning class is very gently I think so how but I do think that for us the researchers and and for anyone in industry the big issues the bigger issues are this distribution shift is a real dangerous thing right if you're putting it in a car or you're making health care decisions and like that we I can show you if you're interested afterwards I could show you a paper which which demonstrates that actually a lot of the