In Magnus Vinding‘s [1] words [2]:
I think there is a problem with underspecified [in expressions] like “more suffering than happiness” […] For example, talking about “whether suffering or enjoyment is more common” (in this piece [3]) sounds rather descriptive, whereas saying that, or whether, “suffering predominates” (ibid.) will often have evaluative and/or moral connotations. The same is true of a term like welfare: it often has an evaluative/axiological meaning as opposed to a purely descriptive one (see e.g. sec. 1.1.1 here: https://tspace.library.utoronto.ca/bitstream/1807/92027/3/Mathison_Eric_201811_PhD_thesis.pdf [4]).
Indeed, the question as to “whether suffering predominates” can mean at least three very different things […]
For one, it may refer to a purely descriptive statement: there is a greater quantity of happiness than suffering, by some given measure. (And this, in turn, implies further questions concerning how one indeed measures happiness and suffering, in particular how one measures them against each other, and whether they are even commensurable, not just evaluatively but also in purely descriptive terms, cf. https://foundational-research.org/measuring-happiness-and-suffering/ [5] and https://animalstudiesrepository.org/animsent/vol1/iss7/18/ [6])
Second, it may mean something along evaluative lines such as “there is more positive value than negative value” in the existing happiness and suffering respectively. And this is a very different claim in that one can claim there is far more happiness than suffering in the world, by some given measure, yet still maintain that the disvalue of the suffering is far greater than the value of the happiness. Indeed, quite a number of philosophers and traditions in the East (cf. http://blogs.dickinson.edu/buddhistethics/files/2015/12/Breyer-Axiology-final.pdf [7]) and the West (including Epicurus and Schopenhauer) have defended views according to which the disvalue of suffering dominates that of happiness entirely; for recent defenses of such views, see Gloor: https://foundational-research.org/tranquilism/ [8] and Wolf: https://jwcwolf.public.iastate.edu/Papers/JUPE.HTM [9].
Third, one can think there is far more happiness than suffering in the world, even in evaluative terms, yet still think the suffering carries much greater moral/deontic significance; asymmetries of this kind have in fact been defended by quite a few prominent philosophers, including W. D Ross, cf. sec. 2.5 here: https://tspace.library.utoronto.ca/bitstream/1807/92027/3/Mathison_Eric_201811_PhD_thesis.pdf [10]
Beyond that, there are also issues concerning intra and inter-personal trade-offs: even if most lives in nature contain far more happiness than suffering (by some assumed measure), this would not mean that the happiness of some beings can ever outweigh the suffering of others, either in evaluative terms or deontic terms. Many ethicists accept intra-personal trade-offs while rejecting inter-personal ones (for instance Richard Ryder and Stevan Harnad, and to some extent Jamie Mayerfeld).
The perhaps most important question to ponder deeply, in my view, is whether we think any amount of happiness can morally outweigh the very worst of suffering. I have argued in the negative: https://magnusvinding.com/2018/09/03/the-principle-of-sympathy-for-intense-suffering/ [11] and so have philosophers Jamie Mayerfeld, Joseph Mendola, Ingemar Hedenius, and Ragnar Ohlsson, among others.
Just thought this was worth pointing out. Notions of “net negative” and “net positive” lives — as pertaining both to single individuals and (especially) to groups — require serious unpacking in terms of their meaning and assumed evaluative and moral implications.
Links and references
[1] https://magnusvinding.com/
[2] https://www.facebook.com/groups/suffering.in.nature/permalink/2727855270577587/
[3] http://www.zachgroff.com/2019/06/how-much-do-wild-animals-suffer.html
[4] https://tspace.library.utoronto.ca/bitstream/1807/92027/3/Mathison_Eric_201811_PhD_thesis.pdf
[5] https://foundational-research.org/measuring-happiness-and-suffering/
[6] https://animalstudiesrepository.org/animsent/vol1/iss7/18/
[7] http://blogs.dickinson.edu/buddhistethics/files/2015/12/Breyer-Axiology-final.pdf
[8] https://foundational-research.org/tranquilism/
[9] https://jwcwolf.public.iastate.edu/Papers/JUPE.HTM
[10] https://tspace.library.utoronto.ca/bitstream/1807/92027/3/Mathison_Eric_201811_PhD_thesis.pdf
[11] https://magnusvinding.com/2018/09/03/the-principle-of-sympathy-for-intense-suffering/
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