suggestion for how to do unsupervised or sub supervised learning which is creating your own proxy tasks and you can think of various different versions of that let's say that there's a video you could predict the top from the bottom bottom from the top left from the right right from the left it's basically masked some part of your input predict the mass part from the unmask part and obviously depending on the mass the mother's going to learn something trivial or non-trivial so usually like like for instance in a