The Curse of Knowledge: Why You're a Terrible Explainer (and How to Fix It)

Your mom calls you about her phone again. "The photos aren't showing up," she says. You take a breath and walk her through it slowly, the way you always do. "Okay, open the Photos app. No, the app with the little flower icon. Yes, that one. Now tap the album at the bottom. The one that says Library. No, not the camera roll — the one next to it." Five minutes later she says, "It's still not there." You hang up, stare at the ceiling, and think the same thing you always think: Am I speaking another language?

Here's the uncomfortable truth: you're not a bad explainer. Your mom is not bad at phones. The problem is something much sneakier, and psychologists gave it a wonderfully dramatic name. It's called the curse of knowledge — and once you know it exists, you'll see it everywhere, including in your own voice.

The Counterintuitive Part: Knowing More Makes You Explain Worse

The curse of knowledge is simple to state and brutal to live with: once you know something, it becomes almost impossible to imagine what it's like not to know it. You can't unsee the answer. You can't remember what the question looked like before the answer appeared. So when you explain, you naturally skip the steps that feel "obvious" to you — because they're not obvious to anyone else. You're not speaking another language. You're speaking your language, and forgetting that the other person doesn't have your dictionary.

There's a famous experiment that shows this perfectly. In the 1990s, a Stanford researcher had people "tap" a well-known song's rhythm on a table with their fingers — songs like "Happy Birthday." The tappers were asked to predict how often listeners would recognize the tune. They guessed it would be obvious. The actual recognition rate was shockingly low. Here's the kicker: the tappers couldn't understand why. In their heads, the song was playing loudly and clearly. In the listener's ears, it was just polite knocking on wood. The tapper heard a melody. The listener heard a table.

That's you on the phone with your mom. That's you in a meeting explaining your project. That's you writing a message that makes perfect sense to you and gets misunderstood anyway. You're not careless. You're cursed.

Where the Curse Bites Hardest

The curse of knowledge doesn't just show up in tech support with family. It's quietly running the show in some of the most frustrating moments of your life:

When you teach. You know the material cold, so you skip the "baby steps" — the definitions, the examples, the context. You start at step three because step one feels patronizing. Your student is lost by minute two but too embarrassed to say so.

When you argue. You assume your partner shares your background facts, so you don't explain why you're upset. "You know what you did," you say. They genuinely don't. What feels like an obvious signal to you feels like a random mood to them.

When you give feedback at work. You think you've said it clearly: "Make it pop more." In your head, "pop" means a specific visual change you've pictured. In your colleague's head, "pop" means literally nothing. Both of you walk away frustrated, each certain the other person is the problem.

Why Your Brain Does This (It's Not Laziness)

The curse of knowledge exists because your brain is a ruthless compression machine. When you learn something, you practice it, and slowly the steps fuse into a single automatic action. Driving a car was once a sequence of conscious tasks — mirror, blinker, pedal, check — and now it's one smooth "driving" feeling. You can't easily reconstruct the beginner's experience because your brain deleted the beginner's notes to save space. That's efficient for you. It's a disaster for the person you're trying to teach.

Psychologists call the antidote "theory of mind" — the ability to hold a separate model of what another person knows. But here's the catch: maintaining that model takes real mental effort. Your brain would rather assume everyone knows what you know. It's the default setting. Fighting the curse means deliberately, every time, building a picture of the other person's mind and checking your words against it. That's tiring. It's also the difference between being someone who "explains things well" and someone who people secretly dread asking for help.

Three Small Moves That Break the Curse

• Do a "curse check" before you speak. Ask yourself one question: "What am I assuming this person already knows?" Then say that part out loud. If you're about to tell a coworker to "fix the funnel," quickly add what the funnel is and why it matters. It feels awkward for you — that's the point. The awkwardness is the curse resisting.
• Make them repeat it back. After you explain something, don't ask "Got it?" — everyone says yes. Instead say: "Just so I know I explained it okay, how would you do it?" This is called teach-back, and doctors use it because it works. Their version will reveal exactly which step you skipped, and you can patch it in real time instead of discovering the hole three days later.
• Lead with one concrete example, not the rule. The rule lives in your head, fully formed. For the other person, an abstract rule is a cloud. Give them a tiny story first: "Imagine you want to save a photo from a text — it works the same way." Once they can picture it, the rule has somewhere to land. Example first, rule second. That one switch will instantly make you sound like a better explainer, because you'll be meeting their brain where it actually is.

The next time someone doesn't understand you — your mom, your partner, your new colleague — try a small act of intellectual humility. Instead of "let me say it again," try "let me think about what I left out." The curse of knowledge is not a personality flaw. It's a side effect of having learned something at all. The fix isn't speaking louder or slower. The fix is remembering what it felt like before you knew — and choosing to take the other person with you, one patient step at a time.