Update: GiveWell funds some interventions at more like $10K/life, which naively suggests that marginal cost per life is about $10K, but maybe those interventions had side effects of gaining information or enabling other interventions in the future and so had greater all-things considered effectiveness.
Update: GiveWell funds some interventions at more like $10K/life, which naively suggests that marginal cost per life is about $10K, but maybe those interventions had side effects of gaining information or enabling other interventions in the future and so had greater all-things considered effectiveness.