Part 16/17:
Drawing on extensive data, he asserts that despite debates and competing theories, IQ remains the most powerful and consistent predictor for academic achievement, job performance, and even life outcomes. Attempts to deny or diminish its importance—such as emphasizing "multiple intelligences"—are, he suggests, attempts to ignore the overwhelming empirical evidence.
He emphasizes that our educational and societal structures are inherently geared toward recognizing and cultivating intelligence—evident in university admissions and assessments. The argument that social class or privilege solely determine success is acknowledged but seen as incomplete; intelligence remains a pivotal factor.