On 20 January 2026, Émile Servan-Schreiber shared a discovery from Victor Hugo’s Les Travailleurs de la mer, published in 1866. Hugo described the public reconstructing a truth from scattered fragments. For Servan-Schreiber, the passage captured something central to collective intelligence: information can be spread among people before anyone has assembled the whole picture.
Le flair du peuple est fin et juste.
Victor Hugo, Les Travailleurs de la mer, 1866
In our translation: The people’s instinct is keen and sound. The accompanying image also reproduces Hugo’s next sentence, about public instinct restoring truth from pieces and fragments. Servan-Schreiber preferred the French word flair, an instinct or nose for something, to the more solemn idea of wisdom.
A literary observation, with a warning attached
The surrounding passage matters. Hugo immediately acknowledges serious uncertainty: the clues seem to fit, but a foundation is missing. The characters can see an apparent act without knowing its motive. This is an observation inside a novel, rather than an experiment demonstrating crowd accuracy. It describes both the attraction of collective inference and the need to check what holds a plausible story together.
Galton’s measured comparison
On 28 November 2022, after a talk at Oxford’s Saïd Business School, Servan-Schreiber described visiting Francis Galton’s grave in Claverdon. He credited Galton with a lasting place in his books and teaching. His post dated Vox Populi to 1906; Nature’s publication record dates the paper to 7 March 1907.
Galton analysed 787 usable entries in a competition to estimate an ox’s dressed weight. The original paper reports a middlemost estimate, or median, of 1,207 pounds and a measured weight of 1,198 pounds. In that comparison, the collective estimate was within one per cent of the real value. Crucially, the answer could be checked against a weight measured after the competition.
Searching for USS Scorpion
On 23 February 2022, Servan-Schreiber shared Camille Larmanou’s account of John Craven and the search for USS Scorpion. The US Navy’s history records the submarine as overdue on 27 May 1968 and credits the research ship Mizar with locating hull sections at the end of October. Craven’s own remarks, preserved by NOAA, describe him as having been in charge of the search. These records do not establish the detailed aggregation method in the popular crowd-estimation story.
The connection to Servan-Schreiber’s teaching on crowd forecasting is a useful question, rather than a universal promise: which separate observations can a group combine, and how will the resulting answer be checked? Hugo offers a memorable description. Galton offers a comparison with a measured result. Modern forecasting needs that second step repeatedly, across questions whose outcomes can be recorded.
