Are We the Only Animals That Understand Ignorance?

The Atlantic:

You’re holding a surprise party for a friend. The door opens, the lights flick on, everyone leaps out… and your friend stands there silent and unmoved. Now,you’re the one who’s surprised. You assumed she had no idea, and based on that, you made a (wrong) prediction about how she would react. You were counting on her ignorance. This ability to understand that someone else might be missing certain information about the world comes so naturally to us that describing it feels mundane and trite.

And yet, according to two psychologists, it’s a skill that only humans have. “We think monkeys can’t do that,” says Alia Martin from Victoria University of Wellington.

…

Yes they do, say Martin and Laurie Santos from Yale University. But it’s different to ours in one crucial respect. The duo argue that other primates “have no concept of information that’s untrue or different [from] what they know.” That means, one, that they can’t conceive of states of the world that are decoupled from their current reality. And so, they can’t imagine other individuals thinking about the world in a different way. They can think about the minds of others, but only when those minds have the same contents as theirs.

Read the whole story: The Atlantic