History
The term "negative utilitarianism" was introduced by R. N. Smart in his 1958 reply toVersions
Like other kinds ofThe weight of evil (disutility)
Philosophers Gustaf Arrhenius and Krister Bykvist develop a taxonomy of negative utilitarian views based on how the views weigh disutility against positive utility. In total, they distinguish among 16 kinds of negative utilitarianism. They first distinguish between ''strong negativism'' and ''weak negativism''. Strong negativism "give all weight to disutility" and weak negativism "give some weight to positive utility, but more weight to disutility." The most commonly discussed subtypes are probably two versions of weak negative utilitarianism called "lexical" and "lexical threshold" negative utilitarianism. According to "lexical" negative utilitarianism, positive utility gets weight only when outcomes are equal with respect to disutility. That is, positive utility functions as a tiebreaker in that it determines which outcome is better (or less bad) when the outcomes considered have equal disutility. "Lexical threshold" negative utilitarianism says that there is some disutility, for instance some extreme suffering, such that no positive utility can counterbalance it. 'Consent-based' negative utilitarianism is a specification of lexical threshold negative utilitarianism, which specifies where the threshold should be located. It says that if an individual is suffering and would at that moment not "agree to continue the suffering in order to obtain something else in the future" then the suffering cannot be outweighed by any happiness.Other distinctions among versions of negative utilitarianism
Thomas Metzinger proposes the "principle of negative utilitarianism", which is the broad idea that suffering should be minimized when possible. Mario Bunge writes about negative utilitarianism in his ''Treatise on Basic Philosophy'' but in a different sense than most others. In Bunge's sense, negative utilitarianism is about not harming. In contrast, most other discussion of negative utilitarianism takes it to imply a duty both not to harm and to help (at least in the sense of reducing negative well-being). TranquilistThe benevolent world-exploder
R. N. Smart introduced the term "negative utilitarianism" in a 1958 article and argued against it, stating that negative utilitarianism would entail that a ruler who is able to instantly and painlessly destroy the human race, "a benevolent world-exploder", would have a duty to do so. This is the most famous argument against negative utilitarianism, and it is directed against sufficiently strong versions of negative utilitarianism. Many authors have endorsed this argument, and some have presented counterarguments against it. Below are replies to this argument that have been presented and discussed.Cooperation between different value systems
One possible reply to this argument is that only a naive interpretation of negative utilitarianism would endorse world destruction. The conclusion can be mitigated by pointing out the importance of cooperation between different value systems. There are good consequentialist reasons why one should be cooperative towards other value systems and it is particularly important to avoid doing something harmful to other value systems. The destruction of the world would strongly violate many other value systems and endorsing it would therefore be uncooperative. Since there are many ways to reduce suffering which do not infringe on other value systems, it makes sense for negative utilitarians to focus on these options. In an extended interpretation of negative utilitarianism, cooperation with other value systems is considered and the conclusion is that it is better to reduce suffering without violating other value systems.Eliminating vs. reducing disutility
Another reply to the benevolent world-exploder argument is that it does not distinguish between eliminating and reducing negative well-being, and that negative utilitarianism should plausibly be formulated in terms of reducing and not eliminating. A counterargument to that reply is that elimination is a form of reduction, similar to how zero is a number.Attempting world destruction would be counterproductive
Several philosophers have argued that to try to destroy the world (or to kill many people) would be counterproductive from a negative utilitarian perspective. One such argument is provided by David Pearce, who says that "planning and implementing the extinction of all sentient life couldn't be undertaken painlessly. Even contemplating such an enterprise would provoke distress. Thus a negative utilitarian is not compelled to argue for the apocalyptic solution." Instead, Pearce advocates the use of biotechnology to phase out the biology of suffering throughout the living world, and he says that "life-long happiness can be genetically pre-programmed." A similar reply to the similar claim that negative utilitarianism would imply that we should kill off the miserable and needy is that we rarely face policy choices and that "anyway there are excellent utilitarian reasons for avoiding such a policy, since people would find out about it and become even more miserable and fearful." The Negative Utilitarianism FAQ's answer to question "3.2 Should NUs try to increase extinction risk?" begins with "No, that would be very bad even by NU standards."Life could evolve again in a worse way
Some replies to the benevolent world-exploder argument take the form that even if the world were destroyed, that would or might be bad from a negative utilitarian perspective. One such reply provided by John W. N. Watkins is that even if life were destroyed, life could evolve again, perhaps in a worse way. So the world-exploder would need to destroy the possibility of life, but that is in principle beyond human power. To this, J. J. C. Smart replies, But in their article ''The expected value of extinction risk reduction is positive'', Brauner and Grosse-Holz quote David Pearce:Getting killed would be a great evil
Another oft-cited reply to the "world-exploder" argument is that getting killed would be a great evil. Erich Kadlec defends negative utilitarianism and addresses the benevolent world-exploder argument (partially) as follows: " . N. Smartalso dispenses with the generally known fact that all people (with a few exceptions in extreme situations) like to live and would consider being killed not a benefit but as the greatest evil done to them."Frustrated preferences
Negative preference utilitarianism has a preferentialist conception of well-being. That is, it is bad for an individual to get his aversions fulfilled (or preferences frustrated), and depending on the version of negative utilitarianism, it may also be good for him to get his preferences satisfied. A negative utilitarian with such a conception of well-being, or whose conception of well-being includes such a preferentialist component, could reply to the benevolent world-exploder argument by saying that the explosion would be bad because it would fulfill many individuals' aversions. Arrhenius and Bykvist provide two criticisms of this reply. First, it could be claimed that frustrated preferences require that someone exists who has the frustrated preference. But if everyone is dead there are no preferences and hence no badness. Second, even if a world-explosion would involve frustrated preferences that would be bad from a negative preference utilitarian perspective, such a negative utilitarian should still favor it as the lesser of two evils compared to all the frustrated preferences that would likely exist if the world continued to exist. The Negative Utilitarianism FAQ suggests two replies to Arrhenius and Bykvist's first type of criticism (the criticism that if no one exists anymore then there are no frustrated preferences anymore): The first reply is that past preferences count, even if the individual who held them no longer exists. The second is that "instead of counting past preferences, one could look at the matter in terms of life-goals. The earlier the death of a person who wants to go on living, the more unfulfilled her life-goal." The Negative Utilitarianism FAQ also replies to Arrhenius and Bykvist's second type of criticism. The reply is (in part) that the criticism relies on the empirical premise that there would be more frustrated preferences in the future if the world continued to exist than if the world was destroyed. But that negative preference utilitarianism would say that extinction would be better (in theory), assuming that premise, should not count substantially against the theory, because for any view on population ethics that assigns disvalue to something, one can imagine future scenarios such that extinction would be better according to the given view.Combining negative utilitarianism with rights
A part of Clark Wolf's response to the benevolent world-exploder objection is that negative utilitarianism can be combined with a theory of rights. He says: Negative utilitarianism can be combined, in particular, with Rawls' theory of justice. Rawls knew Popper's normative claims and may have been influenced by his concern for the worst-off.Classical utilitarianism may also entail world destruction
For someone who believes that consequentialism in general is true, yet is uncertain between classical and negative utilitarianism, the world destruction argument is not fatal to negative utilitarianism if there are similar hypothetical scenarios in which a classical utilitarian (but not a negative utilitarian) would be obligated to destroy the world in order to replace those killed by new individuals. Simon Knutsson writes:There are scenarios in which traditional utilitarianism, but not negative utilitarianism, implies that it would be right to kill everyone, namely, scenarios in which the killing would increase both positive and negative well-being and result in a greater sum of positive minus negative well-being. Negative utilitarianism does not imply that it would be right to kill everyone in such scenarios because, in these scenarios, killing everyone would increase negative well-being. An example of such a scenario is that all humans or all sentient beings on Earth could be killed and replaced with many more beings who, collectively, experience both more positive well-being and more negative well-being, but with a greater sum of positive minus negative well-being.
Other works
Toby Ord provides a critique of negative utilitarianism in his essay "Why I'm Not a Negative Utilitarian", to which David Pearce, Bruno Contestabile and Magnus Vinding have replied. Other critical views of negative utilitarianism are provided by Thaddeus Metz, Christopher Belshaw, and Ingmar Persson. Joseph Mendola develops a modification of utilitarianism, and he says that his principle: Professor Henry Hiz writes favorably of negative utilitarianism.: "Utilitarianism failed, but what is sometimes called 'negative utilitarianism' avoids many of the shortcomings of classical utilitarianism. It is a good candidate for an ethics that expresses the Enlightenment tradition." Fabian Fricke published the German article "". In book format, Jonathan Leighton has defended a variation of negative utilitarianism he terms "xNU+", with the "x" placing particular emphasis on the prevention of extreme suffering, and the "+" accommodating deep human intuitions, including the desire toSee also
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{{Wiktionary, negative utilitarianism