May be ignorance is.
Unlike knowledge, which is infinitely reusable, ignorance is a one shot deal: Once it has been displaced by knowledge, it can be hard to get back. And after it’s gone, we are more apt to follow well-worn paths to find answers that to exert our sense of what we don’t know in order to probe new options. Knowledge can stand in the way of innovation. Solved problems tend to stay solved – sometimes disastrously so.
David Gray, “Wanted: Chief Ignorance Officer”, Harvard Business Review, November 2003, 22-4
