The Illusion of Explanatory Depth
People may overestimate how well they understand a mechanism until asked to explain it.
The Mechanism: The illusion of explanatory depth describes findings that people often rate their understanding of complex systems as stronger than it is, then revise that judgment when asked to produce a detailed explanation.
The Philosophical Pivot: Knowing how to use something is not the same as knowing how it works. Modern life depends on systems whose benefits are distributed broadly while their mechanisms remain specialized.
The Horizon: This gap can affect public debate when people confidently support policies or technologies they cannot explain. Recognizing the gap can invite curiosity rather than shame.
No one can understand every mechanism they depend on. Expertise is distributed, and humility means knowing when to rely on others and when to ask for a clearer account.
The moment of uncertainty may be the beginning of learning rather than evidence of failure.
Familiarity can feel like knowledge until someone asks you to explain the mechanism.
Which thing do I claim to understand only because I have learned how to use it?