" Yet, when we allow complexity to be hidden and handled for us, we should at least notice what we are giving up. We risk becoming users of components, handlers of black boxes that do not open or don’t seem worth opening. We risk becoming people who cannot really fix things, who can only swap components, work with mechanisms we can use but do not understand in crucial ways. This not-knowing is fine while everything works as we expected. But when something breaks or goes wrong or needs fundamental change, what will we do except stand helpless in the face of our own creations "

― Ellen Ullman , Life in Code: A Personal History of Technology