AI is meant to amplify the human mind.

Is it substituting yours?

The productivity gains are real. But productivity and capability are different buckets. Productivity over time depends on compounding capability. Capability atrophy leads to diminishing returns.

Developers thought AI made them 24% faster. It made them 19% slower — a 43-point gap between perception and reality. The more people trust AI, the less they think.

Productivity is up — 26% more tasks across 4,867 developers. But productivity and capability aren't the same thing. One rises while the other falls. The person it's happening to can't tell the difference.

When AI generates, you evaluate instead of constructing. The thinking that builds understanding never happens. Students who learned with AI dropped 17% below the control group once it was taken away.

But a tutor that gave hints instead of answers eliminated the harm. Same model. Different design. That's what these docs are about.

Whether your tools are designed this way is, as yet, unmeasured.