He has not been able to difference between the pickleman and his true and honest sweetheart several times, men tend to be worse with faces when it comes to women are very good with the faces the women they are courting or women they view as the most fertile. Chris' problem lies in the fusiform gyrus of his brain, which means that part of his brain is either screwed up in structure or shape or is not connecting to other parts of his brain necessary for the complete recognition of faces. Chris would be able to recognize Barb and Bob just because he was exposed to them over a longer period of time, just like he can recognize his gal-pals in his facebook. Just like his galpals, though, if his brother aged slightly or put on a little bit of weight, he may be completely unrecognizable to Chris. Chris also has a difficult time differentiating between voices, being duped by a 13-year-old boy playing a brother and girlfriend and the same time. Chris got accustomed to Borbs aging faces and recognize them because he was gradually introduced to their changes, also the fact that they were already old when he was born helped as well. Chris' inability to distinguish between faces or voices along with his driving history leads me to believe that his autism is pretty bad, but he is also severely exceptional as well.