Testiclees The Tenacious

Dr. Jared Cooney Horvath just delivered the brutal truth parents and educators need to face: “Even in schools, it doesn’t matter what the size of the screen is… and it doesn’t matter who bought it… All of these things are going to hurt learning, which in turn are going to hurt our kids’ cognitive development.” His core warning: Gen Z is the first modern generation to be less cognitively capable than their parents — despite more years in school. Attention, memory, literacy, numeracy, executive function, even general IQ — all declining. The culprit isn’t school itself. It’s the widespread introduction of screens and digital tools for learning. Across 80 countries, once tech floods classrooms, performance drops sharply. Kids using computers ~5 hours/day for schoolwork score over 2/3 of a standard deviation lower than those who rarely touch tech. US NAEP data mirrors it: states adopt 1:1 devices → scores plateau, then fall. The biological reality: Humans evolved to learn deeply from other humans, not screens. Screens circumvent the natural mechanisms of attention, memory consolidation, and deep processing. When the tool fails to deliver, we don’t remove it — we redefine success to fit the tool (e.g., SAT reading comprehension reduced to skimming short sentences instead of deep passages). That’s not progress. That’s surrender. The cost is a generation losing cognitive sharpness at the exact moment the world needs them sharpest. Parents, teachers, policymakers: How much longer do we let screens dictate what “learning” looks like?