> > By robustness I mean the brain is pretty hard to exploit. You can't trick it into thinking an image is pornographic just by changing the color balance. > No

> > By robustness I mean the brain is pretty hard to exploit. You can't trick it into thinking an image is pornographic just by changing the color balance. > No it's not, just ask any advertiser. One of the great things about humans is that they can consider the context of a remark, although apparently this is not universal.