I have nothing intelligent to say without reading the full paper... ...But, how different is this from the various optical illusions humans fall for? I mean we

I have nothing intelligent to say without reading the full paper... ...But, how different is this from the various optical illusions humans fall for? I mean we can't exactly tell the difference between a rabbit and duck ourselves[1] so isn't it just a universal property of all neural-network like systems that there will be huge areas of mis-classifications for which there hasn't been specific selection? [1] http://mathworld.wolfram.com/Rabbit-DuckIllusion.html http://mathworld.wolfram.com/Rabbit-DuckIllusion.html