The more you know, the harder it is to change someone’s mind

The more you know, the harder it is to change someone’s mind View our Twitter (X) feedView our Youtube channelView our Instagram feedView our Substack feedView our Spotify feed The more you know, the harder it is to change someone’s mind The curse of knowledge explains why leaders have difficulty persuading others despite their more informed perspective. Mind and BehaviorBusinessCommunication SkillsBehavioral EconomicsCognitive Biases Adapted from The Persuasive Leader: Proven Strategies for Moving People and Ideas by Jay A. Published by Berrett-Koehler Publishers.

Here’s the bad news: The deeper your understanding of an issue and the stronger your conviction about the solution, the worse you often become at persuasion. This isn’t a character flaw; it’s a law of neuroscience. Once you understand it, you’ll stop wondering why your brilliant ideas and proposals keep floundering in meeting rooms.

It’s due to a cognitive trap that the fields of behavioral economics and neuroscience have spent decades documenting: the _curse of knowledge_. Once I explain how it works, you’ll start to recognize why it’s working against your persuasion. In the early 1990s, Stanford graduate student Elizabeth Newton designed a simple experiment that revealed something profound about human cognition.

She divided participants into two groups: “tappers” and “listeners.” Tappers were given a list of well-known songs like “Happy Birthday to You” and “The Star-Spangled Banner” — simple tunes everyone knows. They were asked to tap out a song’s rhythm on a table while a listener tried to identify it. Before they began, tappers were asked to predict how often listeners would correctly identify the song.

The tappers predicted a 50% success rate — after all, these were famous songs, and the rhythms were distinctive. They felt confident they could tap them out clearly. Out of 120 songs tapped, listeners correctly identified only 3 — a success rate of 2.5%.

This result shocked the tappers. The rhythm was clear and unmistakable to them as they tapped. How could the listeners not hear the song perfectly?