ABSTRACT A welfare subject is an entity with a good of its own. Welfare subjects have interests. Things matter to them. It is uncontroversial that typical adult humans are welfare subjects. It is uncontroversial that rocks are not welfare subjects. Just what makes this so is a matter of controversy. The default view is that sentience is necessary for welfare subjecthood. A competing view is that teleological organization suffices for welfare subjecthood. This article challenges both views by developing a third view that sits between them. An autopoietic entity is one that engages in self-production in a way that is adaptive to its environment. An autopoietic entity sustains, maintains, and renews itself on an ongoing basis. This article argues that all autopoietic entities are welfare subjects. This view explains why sentient entities such as animals are welfare subjects. It explains why merely teleologically organized entities such as automobile engines are not.
Donald W. Bruckner (2025) studied this question.