know if you don't have one right so the lesson1 the left hand side is your doing the prediction training and the right hand side you do the prediction infant yeah so so on on the right side yeah the loss function does look different than then on the left but in both cases you have you have a version of the model and with its parameters that that can be updated with signal from from the loss function so so in the unsupervised case this is the this is the function that is leading to the unsupervised or signal flowing through the unsupervised portion