Effective Altruism

Effective altruism (EA) is a contemporary philosophical and social movement that applies quantitative reasoning — especially utilitarian cost-benefit analysis — to the project of doing the most good possible with available resources. EA emerged in the 2000s from the work of philosophers Peter Singer and William MacAskill and has since generated substantial institutional infrastructure: research organizations, donation networks, and a loosely affiliated community of practitioners. The movement's central empirical claim is that most charitable interventions differ in effectiveness by orders of magnitude, and that this variation is discoverable through evidence. The deeper philosophical commitment is that altruistic motivation, however generated, should be directed by reason rather than sentiment. Critics from cultural anthropology note that EA's cost-effectiveness frame is itself a culturally specific value system — one that translates moral concern into the language of market efficiency and may systematically undervalue interventions that resist quantification, including those that build cultural institutions and political capacity. The tension between EA's universalist aspirations and its dependence on particular cultural assumptions about rationality and measurement is unresolved.