We Don’t Know What We Don’t Know

We Don’t Know What We Don’t Know

On 19 April 1995, McArthur Wheeler robbed two banks in Pittsburgh. Knowing that lemon juice can be used as a simple invisible ink, he smeared his face with it before the robberies, believing the juice would make his features invisible to the security cameras … This ‘illusion of competence’ is known as the Dunning-Kruger effect, a cognitive bias that describes the difficulty we all have in assessing our own abilities. Psychologists David Dunning and Justin Kruger explain that poor performers tend to over-estimate their own ability, while experts tend to over-estimate the ability of others. It’s important to understand that in most cases, the Dunning-Kruger effect happens as a result […]