Which tests are referenced as showing declines in maths and reading?

The video cites OECD test results and the US National Assessment of Educational Progress (NAEP) as sources showing declines in maths and reading across various age groups since around 2012, though the declines are not dramatic and vary by country.

Are declines confined to the US, or are they global?

Declines are observed in multiple countries beyond the US, including the UK, Canada, Australia, Germany, and Sweden, though trends differ by region and some developing countries show ongoing increases in measured abilities.

What explanations are offered besides 'Gen Z is dumber'?

The speaker notes that people may develop different skills (e.g., scanning information, choosing tools to solve problems) and that some declines might reflect regression to the mean, changes in health/nutrition, or shifts in how skills are tested rather than a uniform drop in innate ability.

Is there actionable advice for improving skills, or is the video mostly analytical?

The primary focus is analytical, but there is a note about upgrading coding skills, illustrated by a sponsor section that promotes a coding platform. Viewers seeking practical steps could consider structured practice and learning tools mentioned in that segment.

What coding resources are mentioned in the video?

The video references a coding-focused learning platform as a sponsor and mentions programming languages like Python, SQL, and Go as examples of skills one might develop.

Is Gen Z Really That Dumb?

Sabine Hossenfelder

Science & Technology5 min read7 min video

Feb 27, 2026|193,970 views|10,672|2,802

hossenfelder science with sabine science humour gen z dumb is gen z dumb are children getting stupid iq scores dropping iq dropping negative flynn effect science news

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TL;DR

Gen Z isn’t inherently dumber; data show modest, nuanced trends and shifting skills.

Key Insights

OECD data show declines in math, science, and literacy since around 2012, with a notable dip during the COVID era.

The same trend appears in other datasets: US NAEP, UK, Canada, Australia, Germany, Sweden—often modest and not dramatic.

Declines are not unique to youth and are observed across ages in some measures, suggesting broader patterns rather than a single generation’s failing.

Intelligence is partly genetic; changes in outcomes depend on environment and education, and what is valued or taught matters as much as raw ability.

Tests may miss evolving skills: younger generations might excel in rapid information processing or tool-assisted problem solving, even if traditional tests don’t capture it.

Moral panics about intelligence tend to recur; the evidence points to fluctuating trends, not a collapse in cognitive potential.

GEN Z DEFINED AND THE DEBATE

The video opens by challenging sensational headlines that claim Gen Z is inherently dumber and asks for a precise definition of the debate. Gen Z roughly spans those born between 1997 and 2012. The host notes that much discourse centers on whether young people can quote Shakespeare, but reframes the issue as what people do with their intelligence rather than whether their brains are inferior by default. The aim is to separate hype from evidence and understand if observed trends reflect real changes or shifting expectations.

WHAT THE OECD DATA SHOW

The OECD’s regular assessments in math, science, and literacy show declines starting around 2012, with a sharper dip during the pandemic. Adult literacy and numeracy in several countries have stagnated or declined in recent years as well. Importantly, the declines are small and not a dramatic collapse. The data indicate trends rather than verdicts, and they vary by subject, age group, and country, suggesting a complex picture rather than a single, sweeping decline in intelligence.

THE US AND OTHER COUNTRIES: CONSISTENCY AND LIMITATIONS

In the United States, the National Assessment of Educational Progress documents declines in math and reading for certain grades, but the changes are often modest and comparable to past fluctuations. Similar patterns appear in the UK, Canada, Australia, Germany, and Sweden. These results are not uniform across all populations or subjects, and they underscore that multiple countries experience slowdowns rather than uniform, universal drops, highlighting limitations of cross-national comparisons and measurement.

DECLINES ARE MODEST AND NOT NEW

The transcript emphasizes that the declines are not dramatic and that some of the same patterns have been observed for decades, even before Gen Z. In Denmark, Norway, and other places, signals of stagnation or slight regression have appeared for generations, hinting that cognitive trends may reflect longer‑running cycles rather than a one‑time phenomenon. This context suggests caution against panic and an appreciation for gradual shifts rather than sudden, catastrophic drops in capability.

BEYOND INTELLIGENCE: DIFFERENT SKILLS EMERGING

ability is broad, and assessments may miss an evolving skill set; the era rewards different competencies that aren’t fully reflected in conventional IQ‑type tests.

GENETICS, ENVIRONMENT, AND THE LIMITS OF IQ

The discussion foregrounds the idea that intelligence is influenced by genetics, with potential limits on how much can be changed. If genetics sets a baseline, environmental factors like nutrition, education, and opportunities shape how that potential is realized. This frame helps temper the notion that a population’s brains are inherently getting worse and shifts the focus to how we cultivate and apply our cognitive resources.

THE ROLE OF TECHNOLOGY: SMARTPHONES, BUT NOT THE SOLE CULPRIT

Many observers look to smartphones and screens as culprits, yet the trend precedes the widespread use of mobile devices. The speaker notes that the observed shifts have appeared across generations and contexts well before smartphones, suggesting a more nuanced cause. Technology likely influences how we deploy our cognitive abilities, but it does not singlehandedly determine whether a generation is smarter or duller.

REGRESSION TO THE MEAN AND HEALTH/NUTRITION SATURATION

The narrative touches on the idea of regression to the mean after years of improvements in health and nutrition. As populations reach a ceiling in these areas, further gains in certain cognitive measures may taper off. This could explain some stagnation or modest declines without implying a fundamental drop in innate intelligence. The point is to consider broader physiological and societal factors before declaring a crisis.

EDUCATION VALUES AND WHAT WE MEAN BY 'SMARTER'

A central theme is that the meaning of being 'smarter' is contingent on what society values and teaches. If curricula prioritize different skills or formats, performance on traditional tests may reflect those choices more than true cognitive superiority or inferiority. Thus, headlines about universal decline may misinterpret a shift in educational emphasis and the resulting alignment between learning outcomes and assessment methods.

WHAT COUNTS AS SMART SKILLS IN A DIGITAL AGE

The discussion suggests that the current tests may not fully capture the kinds of intelligence increasingly rewarded today, such as rapid information synthesis, tool‑use, and strategic problem solving. If students adapt to a world of abundant information and automation, their abilities might appear different, not lesser. Emphasizing adaptable cognition, meta‑learning, and practical application helps explain why test scores might lag even while real‑world performance improves.

MORAL PANIC AND CYCLES OF CONCERN

The host notes that worrying about youth cognitive decline is a recurring cultural motif, often amplified by headlines. They point to the absurdities and rhetorical flourishes in sensational coverage, reminding viewers that social narratives frequently outpace the data. The takeaway is to maintain moderation, examine the evidence carefully, and resist overgeneralizing from imperfect measurements and isolated anecdotes.

SPONSORSHIP: BOOT.DEV AND HOW TO UPGRADE CODING SKILLS

Toward the end, the video transitions to a sponsorship for Boot.dev, a platform focused on back‑end development with Python, SQL, and Go. It highlights interactive coding in the browser, real projects, and challenges with an AI tutor named Boots to provide guided help. Viewers are invited to create a free account, preview content, and use the code Zabina for 25% off the first year, positioning practical skill upgrade as a concrete takeaway.

Mentioned in This Episode

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Common Questions

The video argues that declines seen in test results are modest, not a dramatic drop in intelligence. It suggests the issue may be about how intelligence is used or measured, and that some populations show different trends than others. The takeaway is that it’s not simply that Gen Z is inherently less capable, but that results reflect broader patterns and changes in skills emphasized by tests.