Expert Blind Spot
Updated 2026-08-10
INTRODUCTION
English translation pending.
CORE DEFINITION
A cognitive limitation in which deep expertise makes a person unable to recognize what novices find difficult, because the expert has automated the basic steps and no longer experiences them as steps. Its core proposition is that the same compression of knowledge which makes expert performance fast also hides the intermediate stages a learner needs, so experts routinely skip the explanations that matter most. The qualifier is that the blindness is specific to one's own domain rather than general.
SCAFFOLDING EFFECT
Reduce cognitive load
- Novice simulation: assume the learner knows nothing and unpack steps that feel obvious to you. - Outsider input: bring in someone from outside the domain to reveal what you have stopped noticing. - Step inventory: write out every intermediate step rather than only the ones you consciously perform.
Anchor fast decisions
Practice compiles a sequence of steps into a single automatic routine, which removes the intermediate stages from awareness. Because the expert can no longer observe their own processing, they cannot report what a novice needs, and the gap widens with expertise rather than closing with it.
MINIMUM ACTION
In progress 0/1Practice this model in one real situation:
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Source support: Explicit
- en.wikipedia.orghttps://en.wikipedia.org/wiki/Curse_of_knowledgeverified
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