The work of Pierre Senges replays and disseminates the motifs of falsification at the origins of fiction. Fragments de Lichtenberg is full of figures of the falsifier, shady hypotheses, and apocryphal reconstitutions that place the authority of knowledge and the division of genres in crisis. With abundant illusions and daring rewritings, the voice of the narrator never pontificates but argues in favor of the unfinished, defending a writing and an ethics of circumspection.