Ethics of uncertain sentience
Ethics of uncertain sentience
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Ethics of uncertain sentience

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Ethics of uncertain sentience

The ethics of uncertain sentience is an area of applied ethics concerned with how to treat individuals whose capacity for sentience—the ability to subjectively feel, perceive, or experience—remains scientifically and/or philosophically uncertain. The topic is particularly significant in animal ethics, where questions have arisen regarding the moral status of animals such as crustaceans, insects, and fish, and whether they can experience pain. It also applies to debates in neuroethics and the ethics of artificial intelligence. A common approach to these issues involves invoking the precautionary principle, which holds that in cases of uncertainty, it is morally preferable to assume sentience rather than risk causing harm to potentially sentient beings.

David Foster Wallace in his 2005 essay "Consider the Lobster" investigated the potential sentience and capacity of crustaceans to experience pain and the resulting ethical implications of eating them. In 2014, the philosopher Robert C. Jones explored the ethical question that Wallace raised, arguing that "[e]ven if one remains skeptical of crustacean sentience, when it comes to issues of welfare it would be most prudent to employ the precautionary principle regarding our treatment of these animals, erring on the side of caution". Maximilian Padden Elder takes a similar view regarding the capacity for fishes to feel pain, arguing that the "precautionary principle is the moral ethic one ought to adopt in the face of uncertainty".

In the 2015 essay "Reconsider the Lobster", Jeff Sebo quotes Wallace's discussion of the difficulty of establishing whether an animal can experience pain. Sebo calls the question of how to treat individuals of uncertain sentience, the "sentience problem" and argues that this problem which "Wallace raises deserves much more philosophical attention than it currently receives." Sebo asserts that there are two motivating assumptions behind the problem: "sentientism about moral status"—the idea that if an individual is sentient, then they deserve moral consideration—and "uncertainty about other minds", which refers to scientific and philosophical uncertainty about which individuals are sentient.

In response to the problem, Sebo lays out three different potential approaches: the incautionary principle, which postulates that in cases of uncertainty about sentience it is morally permissible to treat individuals as if they are not sentient; the precautionary principle, which suggests that in such cases we have a moral obligation to treat them as if they are sentient; and the expected value principle, which asserts that we are "morally required to multiply our credence that they are by the amount of moral value they would have if they were, and to treat the product of this equation as the amount of moral value that they actually have". Sebo advocates for the latter position.

Jonathan Birch, in answer to the question surrounding animal sentience, advocates for a practical framework based on the precautionary principle, arguing that the framework aligns well with conventional practices in animal welfare science.

Simon Knutsson and Christian Munthe argue that from the perspective of virtue ethics, that when it comes to animals of uncertain sentience, such as "fish, invertebrates such as crustaceans, snails and insects", that it is a "requirement of a morally decent (or virtuous) person that she at least pays attention to and is cautious regarding the possibly morally relevant aspects of such animals".

Shelley A. Adamo argues that although the precautionary principle in relation to potential invertebrate sentience is the safest option, that it's not cost-free, as thoughtless legislation employed following the precautionary principle could be economically costly and that, as a result, we should be cautious about adopting it.

Kai Chan advocates for an environmental ethic, which is a form of ethical extensionism applied to all living beings because "there is a non-zero probability of sentience and consciousness" and that "we cannot justify excluding beings from consideration on the basis of uncertainty of their sentience".

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