Right; he was an example. There are very few people with an IQ of exactly 80. But people with IQ's below 89 make up 22% of the population - and will be a significant number of people to deal with. Very little of the population is right at 100. Half the population is below 100 if that's what you meant. Right. The problem is that IQ is a Gaussian distribution. Most are near 100. The requirement for skill in jobs used to match that. (Skill does not equal IQ but there is a strong correlation.) Now the skill requirements are becoming bimodal. So there will be room for the baristas and the janitors, and the engineers, programmers and designers. But the middle is looking more and more empty of jobs.