see it's a small distribution shift and again everything you don't see adaptive overfitting you do see some sensitivity to distribution shift let me skip this go I'll talk about the end finally kaggle two more things Kaggle CAG will released a nice meta-analysis that were metadata set of all their competitions with a lot of information not all the information we would have liked but a lot of information everybody knows on cavil you have a public and a private leaderboard the nice thing is almost in every competition here those are a ID