construction there's a neural net with four neurons and then so then the sample complexity of learning a neural net with four neurons is something like four D over N so D over and roughly so there's a clear sample complexity separation with regularizer you can learn with D samples without regularizer uni at least d square samples so regularization explicit regularization or math you yes yes yes good you might put it it's not but we don't yeah it's not clear yeah yeah they might take exponential time we don't know no we know it takes