Why “saltus” is a great word
A sudden break or leap in continuity, as in a logical argument, a mathematical function, or a sequence of events. From Latin saltus (“a leap, jump”). Unlike gradation, which implies a smooth, step-by-step progression, or hiatus, which suggests a passive gap or dormant pause, a saltus carries the muscular snap of an abrupt transition—an interruption not by absence, but by force. It is the jolt of a function vaulting over a point on the graph, the proof that skips three necessary steps, the life that changes utterly between one heartbeat and the next: a rupture where the mind stumbles, then lands, forever altered by the gap it was never meant to cross.