big model then that can work equally well to these self supervised tasks so their model as I said is pretty pretty simple they take an image and they unrolled the image now an fully unrolled image on let's say image net has 224 squared pixels and that times three right because you have three color channels that's too large even for an open a supercomputer so what they do is first they down scale the image so they down scale it's not as drastic as here where you just get a three by three image but they do down scale it to like