cognitive debt
The idea that leaning on AI for thinking work leaves you with skills and understanding you have quietly stopped maintaining.
Cognitive debt is a borrowed phrase. Software people talk about technical debt, the shortcuts you take today that someone has to pay for later. Cognitive debt applies the same idea to your own head: every time you hand a piece of thinking to a model, you get the result without the practice, and the bill arrives much later as skills that have gone soft.
The term became widespread after a 2025 MIT Media Lab study of essay writing with and without an assistant, which found weaker recall and less ownership of the finished text among people who used one. Related work has reported effects on engagement and critical thinking. The awkward part is that the effect is hard to notice from the inside, because the output still looks fine. That is the reasoning behind proposals such as No AI Fridays, which suggest deliberately working without the tools now and then to take a reading.