Richard said ~16% of people have an IQ of less than 85. If you take this subset of people and look at their category with the highest score (math, language, spatial reasoning, etc.); I wonder what that score would look like. Do 70 percent of those people have at least one score above 100?,(reply>), Another observable variable: people with IQ below 100 have difficulties understanding hypotheticals and people below 90 are not even able to do that at all.<br>Now just casually ask people you know something like: "If right now was yesterday afternoon and you did not eat breakfast and lunch, how would you feel?"<br>If they say hungry, cool. But if they come back with something like: But I did have breakfast/lunch" , you are free to think what you will.