Does AI make you dumber?
It can. It also doesn't have to. The research is more specific than the headlines.
This fear has teeth. A 2025 MIT Media Lab study wired up 54 people writing essays and found the ChatGPT group had the lowest brain engagement, weaker memory of what they'd written, and a diminished sense of ownership. By the last essay, many were basically copy-pasting. That's not nothing.
But read the fine print. The study had 54 people and only 18 finished the final round — it's preliminary and not peer-reviewed. The authors were careful to say the effect shows up when AI replaces thinking, not when it supports it. This is the same pattern as calculators in the 1970s, Google in the 2000s, and GPS in the 2010s: a skill atrophies when you stop practicing it, not because the tool exists. Your brain treats "let me google that" as energy-saving. Same thing happens with AI — but only if you let it do the thinking part.
The question isn't "is AI in my life?" It's "am I still the one thinking?" Struggle is where learning lives. If AI skips the struggle, it skips the learning. If AI explains the struggle, it amplifies it.
Using AI rots your brain.
Outsourcing thinking rots your brain. Using AI to understand hard things sharpens it.
- Write the first rough draft with AI off. Then turn it on to pressure-test your logic.
- After getting an AI answer, close the tab and explain it to a friend in your own words. If you can't, you didn't learn it.
- Use AI to generate questions, not answers. "Quiz me on this chapter" beats "summarize this chapter."
- Keep one class where you never use it. Having a baseline matters.
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