In 1990, Elizabeth Newton, a PhD student at Stanford, conducted a simple yet powerful experiment.
She divided the participants into “tappers” and “listeners.”
The tappers received a list of songs and were tasked with tapping out the rhythm on a table.
The listeners were supposed to… well, guess which song it was.
Here’s the interesting part: the tappers were convinced the listeners would get it.
After all, they could hear the melody in their heads!
But the listeners? They just heard… tapping. Nothing more.
This, my friends, is the essence of “the curse of knowledge.”
Once you know something, it becomes almost impossible to imagine what it’s like not to know it.
Your insight becomes an invisible wall.
Your clarity, to you, is utter Greek to someone who doesn’t share your world.
We do this all the time.
We launch products or concepts that we understand, but that leave our customers puzzled.
We create marketing that speaks to our internal circle, but that falls flat with the people we actually want to reach.
We lead teams and assume everyone sees the world through our eyes.
Newton demonstrated this with a simple tapping. But the implications are enormous.
The next time you communicate with customers, salespeople, marketers, leaders – remember the tappers.
Remember how convinced they were of their clarity, even though they completely missed the mark.
Ask yourself: am I just tapping, in my own conviction, or am I actually creating a melody that others can hear?


