Glossary · L

Labor Sine Fructu

Diagnostic premise (family: characterization). The structural-diagnosis term naming biological existence as labor that does not redeem itself by any product. Library short-form: labor without fruit — the EFIList characterization of biological existence.

Operative use across the library’s 74-objection corpus: cited as the terminal closer in entries where empirical diagnoses (optimism bias, Pollyanna effects, depressive-realism findings) have already done the descriptive work and the metaphysical-characterization closer is needed. It is not an empirical claim about average affect but a structural claim about the shape of the biological project.

Latin construction. Labor (work, toil) + sine (without) + fructu, ablative of fructus (fruit, yield, return). Literal rendering: work without yield. Register: structural-philosophical, not lyric. The phrase functions as a named premise in the library’s dependency graph, paired with the empirical diagnostic premises (TMT, optimism-bias, depressive-realism) at the diagnostic layer; together those four ground the structural-antinatalist substrate.