How do we define a “crisis”? A convenient starting point is the derivation of the English word “crisis” from the Greek noun “krisis” and verb “krino,” which have several related meanings: “to separate,” “to decide,” “to draw a distinction,” and “turning point.” Hence one can think of a crisis as a moment of truth: a turning point, when conditions before and after that “moment” are “much more” different from one another than before and after “most” other moments.
