Psychologists have studied cognitive offloading for decades — the tendency to delegate mental work to external tools, then gradually lose the ability to do it unaided. The brain treats practiced skills like muscles: stop using them, and they weaken.

The concern is newly urgent with AI. One study found that just ten minutes of AI use reduced participants' willingness to persist on difficult tasks — the proposed mechanism being that AI lowers friction so much that struggling starts to feel abnormal.

Researchers note that tools have always reshaped cognition, and that's not always a loss. The distinction that matters is whether you offload execution — letting AI draft an email you understand — or reasoning — letting AI decide what the email should argue. The first is a power tool; the second may quietly erode the skill you thought you still had.