Det hedder "Flynn effekten" -- faktummet at hver generation scorer højere i IQ tests end den foregående generation. Bliver vi faktisk klogere, eller tænker vi bare anderledes? I denne hurtiggående udlægning gennem det 20. århundredes kognitive historie, foreslår den moralfilosoffen James Flynn at ændringer i måden vi tænker på har haft overraskende (og ikke altid positive) konsekvenser. 

Hvorfor vores IQ niveau er højere end vores bedsteforældres

Average IQ scores have soared over the past century, with people today outperforming their ancestors by striking margins—those from 1900 would register only a 70 by modern standards. This leap is not a sign of innate brilliance, but of shifting mental habits shaped by education, work, and society. More abstract reasoning, scientific thinking, and hypothetical problem-solving now permeate daily life, affecting everything from moral debates to professional demands. Yet, these gains have not spread evenly across all areas, leaving gaps in political literacy and historical awareness.

Rising IQs Reveal A Revolution In How We Think