Harry Laughlin of the Eugenics Record Office is discussed for his efforts to use mathematical formulas to predict genetic traits and promote the breeding of the "fit." This leads to a discussion on "dysgenics," a term popularized by William Shockley, which posits that the "less fit" reproduce faster than the intelligent. Shockley's 1970s interview with William F. Buckley Jr. is cited as a key moment in the public debate over racial intellectual differences.