Национальный интеллект и его экономический и социальный эффект
There are large national differences in intelligence and these contribute to differences in educational and intellectual achievement, per capita income, health, longevity, and religious belief. The European and the North East Asian peoples have the highest IQs and have made most of the advances in civilization during the last 2,500 years. They are also the most prosperous, technologically advanced, have the best health, and are the least religious. These national diffe-rences in intelligence evolved during the last ice age, when only the more intelligent could survive in
the northern hemisphere. Today the numbers of these two peoples are declining because of low birth rates. This is a serious problem for the future of these two peoples.