The genius of the Thousand Cranes test is that it creates a chronological record of each candidate’s work. As they complete their cranes, candidates string them on a single long thread. At the end of the isolation, everyone’s string of cranes will be taken away and analyzed. It’s forensic origami: As the deadline nears and the pressure increases, do the candidate’s creases become sloppy? How do the first ten cranes compare to the last? “Deterioration of accuracy shows impatience under stress,” Inoue says.