The Guardian ran a story this week: pupils in England are losing their capacity for critical thinking because of AI.

Education Week published something similar: 7 in 10 students are worried AI is eroding their own thinking skills.

The thing is, they’re probably right. But not for the reasons people think.

What’s Actually Eroding

It’s not that AI makes you stupid. It’s that AI makes shortcuts easier. And humans have always taken shortcuts—we’re exceptionally good at it.

When calculators came around, nobody’s mental arithmetic disappeared—butter use it unless forced. When search engines arrived, we stopped memorizing facts. When Wikipedia launched, encyclopedia sales cratered.

Each time, we traded some mental capability for convenience. Each time, something was lost. The difference with AI is speed and scale.

The Real Cost

Here’s what fades first:

Problem framing. The ability to break a complex situation into solvable pieces. AI can reframe instantly—but you need to know what frame to ask for.

Source evaluation. AI generates confident text. Figuring out if it’s true requires the exact skill that AI bypasses: checking, cross-referencing, doubting.

Independent verification. When AI gives you an answer, the work of confirmation becomes optional. And optional things atrophy fastest.

Depth of processing. Skimming AI summaries is faster than deep reading. Deep reading builds deeper understanding. The trade isn’t neutral.

The Paradox

The students most worried about AI eroding their skills are probably the ones most aware of what’s being lost.

Those who don’t worry? They’re the ones already on the shortcut. And they won’t notice the loss until it’s gone.

What Works

The research is clear on what protects critical thinking:

  • Use AI as a catalyst, not a substitute. Ask AI to help you think, not to think for you.
  • Keep struggling with hard problems. The friction is where growth happens. AI that removes all friction removes the friction that matters.
  • Maintain the hard skills. Fact-checking, source evaluation, deep reading—these are muscles. Use them or lose them.
  • Ask better questions. Prompt engineering is a skill. It’s also a proxy for the real skill: knowing what you don’t know.

The Bigger Picture

The tools we use shape how we think. It’s not controversial—it’s cognitive science.

AI isn’t inherently weakening us. But if we use it to avoid thinking, we’ll get worse at thinking. That’s not a prediction. It’s a choice.

The question isn’t whether AI affects critical thinking. It’s whether we notice before we’ve traded away more than we meant to.

We don’t lose skills by using tools. We lose skills by forgetting we have alternatives.