Interesting thread. My instinct is that this is phones.
Reposted from John Burn-Murdoch
NEW 🧵 Is human intelligence starting to decline?

Recent results from major international tests show that the average person’s capacity to process information, use reasoning and solve novel problems has been falling since around the mid 2010s

What should we make of this?

www.ft.com/content/a801...

Comments

Or maybe the spoon of plastic in all our brains 🥲
"starting"
Yes. A corollary: this 2023 study surveyed 27,000+ people age 18-24 around the world and found those who first owned smartphones in elementary school reported much worse mental health in adulthood than those who got the devices later in their teens. https://sapienlabs.org/wp-content/uploads/2023/05/Sapien-Labs-Age-of-First-Smartphone-and-Mental-Wellbeing-Outcomes.pdf
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