Over the course of human history our collective knowledge is continuously changing shape and growing. We know more today than we did 100 years ago, and we knew more 100 years ago than we did 1,000 years ago.
From generation to generation, we discover more and more of the truth. This is due to the beauty of language, culture, science, and being able to pass knowledge between each other.
As we discover more of what’s true, we also discover more of what’s not true. Misunderstandings, myths, and lies. Everyone used to believe the Earth was flat and was the center of the universe. Common knowledge changes as we learn new things.
What we thought was “true” yesterday may not be what we find to be “true” tomorrow. This is why we should always be open to questioning our ideas and changing them in the face of new evidence.
In the new book This Idea Must Die, different scientists, philosophers, journalists, and professors share their view of a particular idea or theory that they think needs to be done away with.
While the book covers many subjects including biology, physics, economics, and sociology, in this article I’ll focus on 7 ideas in psychology that need to die.