do what we call deep net electrophysiologist so we kind of probe the different represent features of that compressed representation and see what they wear with a fire think of Amalek neurons firing so where do they fire and so what we found is that there is a we found a neuron that fires only on faces there another neuron that only finds and fires and dog faces another one that fires on flowers ok so it's basically it was able to kind of disentangle from massive pixels of the input it was able to to find the kind of specialized neurons for