you don't have different losses you simply back propagate through everything and then train everything so there is no logical distinction between the projection and the representation other than you have a different dimensionality but maybe that's the point here that you make a different dimensionality even though you could you could do the rest in this 2048 space yeah so for now just this doesn't exist let's just say this doesn't exist and we just work with this representation here let's call this Z z prime okay so what happens is we take