Why is your head not exploding? Steven Pinker can explain.
Stephanie Mitchell/Harvard Staff Photographer
Common knowledge is something everyone knows that everyone knows. He saw it. She saw it. He knows that she saw it, and vice versa, ad infinitum.
According to Steven Pinker, Johnstone Family Professor of Psychology, humans are constantly occupied with whether information has achieved this potent status. It’s just that the deliberations usually happen below the level of awareness. Full article here