"Anything more complicated, and your design can only be used by people with [decent computer skills] meaning that you’re down to serving 31% of the population in the United States, 35% in Japan and the UK, 37% in Canada and Singapore, and 38% in Northern Europe and Australia. Again, the international variations don’t matter much relative to the big-picture conclusion: keep it extremely simple, or two thirds of the population can’t use your design."
the vast majority of people are illiterate. this doesn't bode well for their future job prospects.
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- Interesting. I used to work as an instructor in a private computer training school. Our objective was to turn out students that were at least close to 'strong'. When I moved into a regular job, I saw that most people were nowhere near that level. And I'm positive that things deteriorated dramatically over the next decade before I retired in 2011.13w