improvement on Roberta that actually can I brought the performance a little better it works really well doesn't work on images so if you use the same trick on images you block a piece of the image and you ask the system to reconstruct it doesn't quite work it doesn't give you features that are very useful in the end for for vision let's see I'm gonna stop here okay I just want to want to show you a simple a simple example of prediction and or certainty that that's that's interesting and it's an example of training one of those predictive model