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16 August 2026

Marketing Strategy

The curse of knowledge: why new customers misunderstand your business

In 1990 a Stanford student ran a simple experiment: people tapped out well known songs, like Happy Birthday, and predicted that listeners would guess about half of them. In reality, listeners failed to identify more than 90 percent. Gerard uses this tapping experiment to explain the curse of knowledge, the gap between what you hear in your own head and what a new customer actually receives. The tappers heard the full tune as they tapped, so the message felt obvious. The listeners heard random tapping. The same thing happens when a founder explains their business: existing customers have the context, new prospects have none. Gerard's advice is to set a simplified frame of reference. Review your homepage copy and the first lines of your pitch, and frame what you do in language a stranger can decode without your context. If it only makes sense with the tune playing in your head, it is not working.