Psychologists find that many of us are vulnerable to an illusion of explanatory depth. Take everyday objects like a bicycle, a piano, or earbuds: how well do you understand them? People tend to be overconfident in their knowledge: they believe they know much more than they actually do about how these objects work. We can help them see the limits of their understanding by asking them to unpack the mechanisms. How do the gears on a bike work? How does a piano key make music? How do earbuds transmit sound from your phone to your ears? People are surprised by how much they struggle to answer those
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