The neuroscientist Jared Cooney Horvath argues for reducing screen use in schools ‘if we want our kids to have deep transferrable knowledge in our heads’. Photograph: sturti/Getty Images View image in fullscreen The neuroscientist Jared Cooney Horvath argues for reducing screen use in schools ‘if we want our kids to have deep transferrable knowledge in our heads’. Photograph: sturti/Getty Images Schools ‘Our children are less cognitively capable,’ says neuroscientist who wants to cut screen use in schools Jared Cooney Horvath argues that educational technology undermines how children learn and develop
Sally Weale Education correspondent Sun 16 Aug 2026 09.00 CEST Share Prefer the Guardian on Google J ared Cooney Horvath is on a mission. In the wake of global campaigns for smartphone bans in schools and social media restrictions for under-16s, the neuroscientist wants to raise the alarm about educational technology in classrooms.
A former teacher, Horvath believes the use of screens and digital tools in schools is undermining how children learn and develop. “This might be one of the hardest truths our generation has to face,” he writes in his book, The Digital Delusion .
“Our children are less cognitively capable than we were at their age,” he says. “For nearly two centuries, the west experienced steady generational progress. Each new cohort of children grew up, on average, healthier, happier, and better educated than the last. Until now.”
View image in fullscreen Dr Jared Cooney Horvath, a neuroscientist. Photograph: Courtesy Starting around the year 2000, something changed. “Across the west, IQ scores began to fall – even as time spent in school kept rising,” writes Horvath. Scores in international tests started to drop. Why? “The answer lies in the meteoric rise of educational technology.”
According to a recent Department for Education report, the UK educational technology – or edtech – market generated an annual turnover of about £6.5bn. In the US, Horvath says it is a $400bn (£295bn) mega-industry, woven into every aspect of schooling.
“We’ve been making some incredible strides on the screen-based childhood stuff which even two years ago, I did not think was going to happen as fast as it did,” he said. “But it’s not just about getting rid of screens for entertainment. It’s about reducing them as much as possible for academic learning as well if we want our kids to have deep transferrable knowledge in our heads.”
The uptake of laptops in schools – especially in the US where he lives – began in earnest in 2010-12, Horvath said. “It’s when Covid hit, that’s when every school had to pivot digital as a Band-Aid … rightly so. Better to have something than nothing.
“But when Covid finished you would assume they’d rip that Band-Aid off, but the vast majority of schools didn’t. They just stayed digital.” In the US 88% of school districts now had one-to-one computers, he said. In the UK, Covid had a similar impact.
Horvath has been studying how people learn for over 15 years and has concluded that “tech is not a very good tool for it”. He cites recent scores from the programme for international student assessment (Pisa) which takes place every three years and tracks the academic performance of 15-year-olds across dozens of countries.
In 2012, 2015 and 2018, Pisa asked students how much time they spent using digital devices during a typical school day. “The more time students spent on screens at school, the further their scores fell,…