College students used ChatGPT to write essays. One minute later, researchers asked them to recall what they’d written. 83% couldn’t quote a single sentence.
Welcome to the brain rot era where AI tools promise to make us smarter but studies suggest they’re doing the opposite.
Why it matters
New studies link AI tools and social media to measurable cognitive decline, just as US reading scores hit historic lows.
The most striking findings
MIT researchers asked college students to write essays with ChatGPT, then tested their memory one minute later.
Results:
The big picture
Oxford named “brain rot” its 2024 word of the year, originally describing TikTok and Instagram’s effects. Now AI search tools amplify the problem.
People using AI-generated search summaries wrote generic, obvious advice (eat healthy, sleep well). Traditional Google searchers provided nuanced, specific guidance on wellness pillars.
AI transforms active learning, clicking links, evaluating sources, into passive consumption. Your brain stops working when the tool does all the work.
What to do about it
For AI tools:
For social media:
The bottom line
The students who wrote first without AI, then used ChatGPT showed the highest brain activity. Learn the hard way before taking the shortcut.
