Peterson Claims No Evidence IQ Can Be Increased Despite Decades of Attempts

Jordan Peterson stated there is no reliable evidence that IQ can be increased through training or environmental intervention, despite extensive research attempts over decades. He cited the failure of programs like Head Start and cognitive training companies to produce lasting IQ gains, noting that benefits from such programs disappeared by grade 5 or 6. Peterson explained that while IQ can be suppressed through malnutrition or abuse, no method has successfully raised it.