The physical blind spot is only an analogy of the psychological phenomenon. Still, it alerts us to

the fact that our knowledge about the world and ourselves is not complete. Because we are unaware

of these hidden parts of ourselves, it takes some convincing before we believe what is revealed. Con-

sider the following questions:

In this experiment, you learned about your blind spot through actual experience. Suppose I had

merely told you about the blind spot? Which information is the most powerful in convincing

you of its existence?