The Illusion of Understanding
We live in a world where we know how to use more things than we actually understand. We drive cars without knowing much about their engines, use smartphones without understanding how they communicate and trust countless systems that quietly make our everyday lives possible. Familiarity gives us confidence, and somewhere along the way, we begin to mistake that confidence for understanding. Psychologists have a name for this, the Illusion of Explanatory Depth. In a study published in 2002, researchers Leonid Rozenblit and Frank Keil found that people often believed they understood everyday things, such as bicycles, toilets and zippers, much better than they actually did. When asked to explain precisely how these worked, their confidence dropped. It turns out that knowing what something does is very different from understanding how it works. What happens when this illusion extends beyond individuals, to decisions made by entire societies? In 2016, voters across the UK chose to leave the E...