predict what is the angle you rotated the original image by that's that's really it so in this case for the first time as you would predict the conversion and that has to predict 90 degrees for the second it has predict 270 for the third 180 and so on for the fourth it just has to predict there's no rotation which is a zero so why does it learn something nice why does it have to learn anything at all so if you look at the 180 degree rotation like the only reason you're able to say it's 180 degrees is because