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Richard Lynn argues that the condemnation of eugenics in the 20th century went too far and offers a reassessment. He argues that the objectives of eugenics are desirable and achievable by human biotechnology, cloning, and embryo selection, rather than controling natural reproduction.

(Hardback)

Lynn and Vanhanen test the hypothesis on the causal relationship between the average national intelligence (IQ) and the gap between rich and poor countries by empirical evidence.