In Advance of the Broken Arm is generally explained as a joke about snow removal: use the shovel before ice makes the pavement dangerous, and you may avoid breaking an arm. Duchamp certainly leaves that practical reading available. But the title does more than name an imagined accident. It places the shovel before an event: the breaking of the arm.
The definite article matters. This is not In Advance of a Broken Arm. It is In Advance of the Broken Arm. Duchamp’s January 1916 letter to his sister Suzanne gives the phrase in that form, while the original 1915 snow shovel—selected in New York, inscribed, hung in his studio, and later lost—already stood at the beginning of the New York readymade sequence.
The broken arm need not be Duchamp’s literal arm, nor only the arm of someone who slips while shovelling snow. It can be read as the painting arm: the arm that holds the brush and makes the conventional picture. The shovel then becomes an advance notice that painting, as Duchamp had practiced it and as the public had misread it after Nude Descending a Staircase, No. 2, is about to be disabled.
This is not to say that Duchamp immediately ceased painting. The point is more exact. The old arrangement in which skilled painterly depiction was expected to carry artistic meaning is about to break. Meaning will be transferred elsewhere: into titles, inscriptions, selected objects, printed pages, dates, and the relations between dispersed works. The readymades are the break that the shovel foretells.
Duchamp later said that the inscriptions added to readymades were meant to carry the spectator’s mind toward “other regions more verbal.” The shovel already establishes that procedure. The object supplies an instrument; the title supplies the event. The meaning does not reside in a virtuoso image of a broken arm. It is produced by the collision between an ordinary tool and a phrase that asks us to imagine a rupture still to come.
The shovel is therefore not simply an early anti-art gesture. It is a threshold object. It stands before a sequence in which the visible surface—the shovel, comb, urinal, hat rack, bird cage—remains available to everyone, while the deeper operation is carried through words and correspondences. The readymades do not merely replace painting with things. They redistribute a pictorial problem that painting can no longer openly hold.
In Advance of the Broken Arm is the warning label on the whole operation: the painting arm will be broken, but the work will continue elsewhere.