Moral Progress

Moral progress is the historical expansion of the set of beings and interests considered worthy of moral consideration — the gradual enlargement of the moral circle from tribe to species to sentient beings and, potentially, beyond. It is not a teleological necessity but an empirical regularity: across multiple cultures and time periods, the boundaries of moral concern have tended to expand rather than contract, though this expansion has been uneven, contested, and frequently reversed.

The pattern is observable in the abolition of slavery, the extension of rights to women, the criminalization of animal cruelty, and the emerging recognition of ecosystem rights. Each expansion was initially resisted by arguments from tradition, nature, or divine order — arguments that now appear as rationalizations of existing power structures rather than principled moral claims. The regularity suggests that moral progress is not merely a change in opinion but a discovery process: the progressive recognition of morally relevant properties (suffering, agency, interests) that were always present but previously invisible to those with the power to define the boundaries.

Whether moral progress represents genuine cognitive advancement or merely shifting power relations is the central question of moral realism. If moral facts are mind-independent, then progress is discovery; if moral claims are social constructions, then progress is renegotiation. The systems-theoretic view suggests a third option: moral progress is the co-evolution of moral concepts with the social and technological systems that make their application possible. We do not merely discover that animals suffer; we develop the economic surplus, the institutional frameworks, and the technological alternatives that make acting on this recognition feasible.