car and this kind of thing we drive to match as closely as possible so what did we see okay so the first thing we see is we take vgg 16 everyone's favorite network all right I guess anyway this is a big one and what we saw is a huge drop in accuracy right there's an 8 percent drop in accuracy from the first test set to the second test set which is much bigger than you would expect by a 1 over root N and some some reasonable capacity that's big mean this is we put a little confidence interval about where we should be this dashed line is the