Whether you’re giving a presentation or having a conversation, even when you’re convinced the other person is mistaken, telling them outright — “No, you’re wrong about this!” — does nothing to bring them closer to agreeing with you.
Why doesn’t it work? Because even if you manage to talk someone into your point of view through sheer persistence and effort, a feeling will linger inside them: “I’ve been looking at this the wrong way all along.” And as you can imagine, most of us don’t want to be left feeling that way.
When we tell someone they’re wrong, no one responds with “Oh, okay, let me look at it from that angle.” They go straight into defense mode. The moment you use that word, you stop being someone defending a viewpoint and become someone attacking their identity, their sense of self.
So even when you know the other person is mistaken in that moment, instead of stating it outright, you can first find common ground with them, then invite them to see things from your perspective. What you want them to think is something like: “As the listener, I was seeing this differently, but the perspective you’ve shared seems more accurate.” Notice there’s no humiliation in that thought, no sense of having made a mistake. That makes it far easier for someone to land on than “Oh no, I was wrong.”
To get there, you can make small adjustments to the sentences you use. For instance, instead of telling someone directly “Your approach is wrong,” you could say: “This approach worked up to a point. But once we scale it up, it starts making things harder for us.” There’s nothing in that phrasing that puts the other person on the defensive.
Or instead of telling people directly that they’re wrong, you can talk about how circumstances have changed, how the data has been updated, how the dynamics this year are a bit different. In a presentation, for example, you might say: “This method was right last year, but this year the same method is driving our costs up, so we need to update it.”
Notice there’s nothing in that statement about the person themselves or how they think. No accusation aimed at them. So as long as the data backs it up, there’s no reason left for the other person to feel they need to defend themselves.