Definition
The judgment and expertise that erodes when a task and its responsibility are both delegated to AI.
What is at stake
It is the term most likely to be repeated at you with no citation attached. Knowing where it came from is what lets you use it without inheriting the drift.
Where the word came from
- Technical debtWard Cunningham, 1992, a software metaphor for shortcuts that accrue interest
- Cognitive debt in clinical researchMarchant and Howard, King's College London, 2014 and 2015, on dementia risk
- Repurposed for AI offloadingKosmyna's study, 2025
How episcope came to it
Kosmyna's Your Brain on ChatGPT, 2025, for the operational definition now in general use.
What to watch for
The definition in general use comes from the MIT study. The metaphor is older than that, and older than AI. Worth watching: BCG circulated the term in June 2026 attributed only to a growing body of research, with no citation attached. That is the kind of drift a genealogy exists to catch.
Papers behind it
Kosmyna, N., Hauptmann, E., Yuan, Y. T., Situ, J., Liao, X.-H., Beresnitzky, A. V., Braunstein, I., & Maes, P. (2025). Your Brain on ChatGPT: Accumulation of Cognitive Debt when Using an AI Assistant for Essay Writing Task. MIT Media Lab. arXiv:2506.08872.