There are a class of occupations where the job of the worker is to know and anticipate the unknown unknowns of a situation or domain. Aircraft safety engineers and investigators, for example, are tasked with anticipating emergency situations or failure modes of complex machines (aircrafts) that we might not have discovered to even be possible yet. Because commercial airliners are engineered to such rigorous standards of safety (exceptions like the 737 MAX notwithstanding), most aviation accid...
