Metacognition is the capacity to monitor your own thinking — to notice the difference between understanding something and merely recognizing it. It is the faculty that tells you when to slow down, check a claim, or admit you are out of your depth.
Fluent AI output is unusually good at producing the feeling of understanding without its substance. An answer arrives complete, confident, and well-formed, and the reader's sense of having grasped it can run well ahead of any actual grasp. A 2026 study in Social Sciences validating a scale for epistemic trust in AI found that people's self-reported reflectiveness predicted how much authority they granted AI far better than their measured capacity for cognitive reflection — a gap between believing you are thinking critically and doing so.
This hub gathers work on that gap: how AI use reshapes self-monitoring, calibration, and the ability to know what you actually know.