Utterly bogus pseudo-scientific drivel masquerading as research results, used as a sales pitch

Jakob Nielsen generally knows what he's talking about, especially when he's talking about eye-tracking studies (you know, the ones that show straight males staring at the crotches when looking at photos of male ballplayers).

Nielsen knows many things, but apparently he doesn't know as much about cavemen as he thinks he does.  Hold your nose while reading this:

Many of the skills needed to use computers aren't highly useful in slaying mammoths. Such skills include remembering obscure codes from one screen to the next and interpreting highly abbreviated form-field labels. It's no surprise that people are no good at these skills, since they weren't important for survival in the ancestral environment.

Did you notice all the citations of peer-reviewed work in that paragraph?  That's because there aren't any!  Highly-abbreviated form labels?  Obscure codes?  Does Nielsen have any idea at all how relevant these were for mammoth hunting?  Hint: the animal's traces don't have neon signs on them announcing "the thing you want to eat took a dump here".  The codes are obscure and abbreviated.

I don't think I'll be signing up for his seminar on how to build websites for cavemen.  Nielsen doesn't know the subject matter.