Well, Dr. Jared Cooney Horvath thinks so.
He is a former teacher turned cognitive neuroscientist, and his claim lands like a cold slap: Gen Z is the first modern generation to underperform their parents on multiple cognitive measures. Not just one narrow test. The basics. Attention. Memory. Literacy. Numeracy. Executive functioning. Even broad “general ability” indicators, depending on the measure.
Is it true?
That is the right place to start, because this topic attracts two lazy reactions.
One side turns it into a meme. “Brain rot.” “Kids these days.”
The other side turns it into denial. “Every older generation complains.”
Neither response helps.
What matters is this: a lot of us are witnessing a shift with our own eyes. Kids who can stay locked onto a screen for an hour but struggle to read for ten minutes. Kids who are bright, curious, capable, but collapse when the task gets slow, uncomfortable, or requires sustained effort.
So instead of arguing about whether the claim is 100% correct, ask the better question:
If cognition is slipping, what changed in the environment that could plausibly explain it?
The historical pattern, and the break
For over a century, the broad trend was reassuring. Each generation, on average, outperformed the previous one on key cognitive and educational indicators. There are many reasons, but one big driver was simple: more schooling, better systems, more exposure to reading and structured thinking.
Then comes the weird part.
Horvath points to a “decoupling.” Kids started spending even more time in school than prior generations, yet performance stopped rising the way it used to. In some domains it stalled. In some domains it dropped.
That creates a clean puzzle:
- It is probably not biology. Human evolution does not swing in a decade.
- It is probably not the basic structure of school. Classrooms still look like classrooms.
- So what else changed fast, and everywhere?
Horvath’s answer is the one that makes people uncomfortable because it is so obvious we stop seeing it.
The tools. The environment. The screens.
What happened around 2010?
Around the early 2010s, screens stopped being “sometimes” and became “default.”
Not only at home. In school too.
Tablets. Laptops. One-to-one programs. Digital assignments. Learning platforms. The quiet assumption that more technology automatically equals better learning.
The selling point was always the same: access, personalization, engagement, efficiency.
And to be fair, technology can be useful. It can widen access. It can support certain tasks. It can make administration smoother. It can help with some forms of practice.
But here is the mistake that sits at the center of this whole debate:
Engagement is not the same thing as cognition.
Kids can look busy on a screen while doing very little deep thinking. Clicking, watching, swiping, bouncing between windows. That is activity, not necessarily learning.
This is why Horvath emphasizes a pattern he says shows up across large datasets: when digital technology becomes widely used for learning in schools, performance often trends down. He also stresses that much of this is correlational, not a neat single cause. Fair point.
Still, correlation does not mean “ignore.” It means “pay attention.”
Especially when the pattern matches what parents are observing.
The mechanism in plain English
You do not need a neuroscience lecture for this part. Just think about how humans actually learn.
We learn best when we are forced to do things that are mentally expensive:
- hold ideas in mind
- concentrate past boredom
- work through confusion
- try, fail, adjust, try again
- explain our thinking to another human being
- receive feedback that changes how we think
These are not comfortable processes. They are slow. They require friction.
Now compare that with the default design of most screen environments:
- speed
- novelty
- instant reward
- constant switching
- easy escape when something feels hard
If a child spends years in an environment optimized for speed and switching, they get good at speed and switching.
Then we act surprised when slow thinking feels painful.
This is where executive function becomes the real headline.
Executive function is the bottleneck
Executive function is the brain’s management system. It helps a child:
- control impulses
- stay focused
- follow multi-step instructions
- plan and complete tasks
- shift strategy when stuck
It is the difference between “I can’t do this” and “I’ll try another way.”
And executive function grows through one thing most modern environments remove: productive struggle.
Not suffering. Not harshness. Just the experience of staying with difficulty long enough for the brain to adapt.
A childhood built around smooth, instant, low-friction experiences can produce a very specific weakness: kids become less tolerant of slow effort, and that makes everything harder.
Reading. Math. Writing. Sports. Relationships. Discipline.
This is not a character flaw. It is training.
Why is this urgent!
Because cognition compounds.
A child with stronger focus and executive function learns faster. That child reads more, so language improves. Solves more problems, so confidence builds. Handles setbacks better, so resilience grows.
A child with weaker focus may still be smart, but their progress becomes inconsistent. They start and stop. They avoid. They drift. They depend on external stimulation to keep going.
If this is happening at scale, it is not a small issue.
It means we are raising a generation with enormous potential and a fragile cognitive toolkit.
So what do we do?
Not panic. Not preach. Not pretend we can reverse a decade of environmental change in one weekend.
But we do need to stop acting like this is somebody else’s problem.
Here is a simple reset, without turning your home into a boot camp:
- Protect daily deep-focus time. One block. One task. No devices.
- Make struggle normal again. Let kids sit inside problems without instant rescue.
- Put humans back into learning. Conversations, explanations, feedback, real interaction.
If Horvath’s claim is even partly true, this is not optional.
Because the world ahead will reward people who can focus, learn, adapt, and think clearly.
And if you want this to be more than a motivational moment, treat it like training. Not motivation.
Do not tell yourself “we’ll do better with screens.” That is not a plan. Pick one cognitive muscle and train it for a few weeks.
Ask yourself, which one is your child missing right now?
- Focus: Can they stay with one task when it gets boring? There are resources to guide you on how to build focus in children. Click here.
- Inhibition: Can they resist the impulse to quit, switch, or reach for stimulation? If not, please view these resources to help them.
- Working memory: Can they hold instructions and use them without collapsing mid-way? Read more to work this important skill for your children.
- Retrieval: Can they pull knowledge out on demand, or do they only recognize it when they see it? Check more on this skill here.
- Inference: Can they read between the lines, connect dots, and make sense beyond the obvious? This is a skill children will need in the next 5 years. Read more about this here.
- Cognitive flexibility: Can they change strategy when stuck, or do they freeze and melt down? Read more.
- Reasoning: Can they explain their thinking clearly, step by step? If they struggle, there are ways to build this. Read more here.
- Creativity: Can they generate ideas under constraints, not just when they feel like it? The biggest myth is that creativity is inborn. It is not. Read more about it here.
