There is a little known philosophy that—for me at least—is well founded in reality, provides a strong basis for compassionate ethics and will eventually become our predominant way of thinking. This philosophy also provides the best chance of solving the world’s problems. However, most people disagree with it.
Let’s Take a Philosophical Journey
We should start by using evidence and reason as the basis of our beliefs, because reality is all there is. Fictional stories are real things too—as patterns of brain activity, states within computers or as ink on a page—but the things those stories are about do not exist.
The use of evidence and reason goes beyond the scientific method as narrowly defined, but scientific thinking is at its core. The naturalist worldview (see the Brights) rejects belief in the supernatural and mystical because there is no good evidence for their existence. If evidence of these types of phenomena were discovered, they would no longer be supernatural and we could build factual knowledge about them.
The naturalist worldview includes atheism, which is simply a lack of belief in god, because there is no good evidence for the existence of god. Atheism in itself implies little about ethics—except to stipulate that they shouldn’t be driven by a belief in deities or in religions.
In this worldview, we must construct our own ethics: first, by granting moral consideration for all humans. We must do so because, from our own experience, we know directly that we can both suffer and flourish—we can experience both qualitatively bad and good things. Both science and our own experience show us that all humans experience suffering and flourishing largely as we do. We care about the experiences of other humans because of our evolved tendencies to co-operate and feel compassion, because of enlightened self-interest and perhaps because we strive to take an impartial standpoint not bound to our own perspective. While many aspire to feel equal compassion for all humans, most of us prioritize some over others—but we grant at least some meaningful moral consideration to all. That leads us to humanism.
Sentientism
Sentientism is an ethical philosophy that, like humanism, rejects the supernatural and applies evidence and reason. However, it grants moral consideration to all sentient beings, not just humans. Sentience is the capacity to experience suffering and flourishing. Things that can’t experience might be important in other ways, but they don’t warrant our moral consideration. A mountain or a river is important only because of the effect it has on the experiences of sentient beings like us.
Sentientism goes further than humanism because humans aren’t the only sentient beings. Other sentient beings deserve our moral consideration too: the most obvious being non-human animals. While scientific debate continues as to where to draw the boundaries between sentient and non-sentient beings (do sea sponges count?), it’s clear that the vast majority of animals, particularly those we farm in their billions, are sentient. It’s sentience, not a somewhat arbitrary species boundary, that matters.
Sooner than you think, we may also create or come across new types of sentient beings: general artificial intelligences or even alien species. Surely our ethics should help us think about how we should treat them and how they should treat each other, even as we also worry about how they will treat us.
The diversity of sentient beings is already breathtaking and science indicates that, between species, degrees of sentience vary substantially. The sentientist position allows us to grant different degrees of moral consideration, depending on where on the sentience spectrum something lies. This contrasts with anti-speciesism, which often implies that all animal species deserve equal moral consideration. (See Mark Wright’s explanation of this line of thinking here.) Sentientism also avoids anthropomorphizing animals. They are likely to experience differently from humans—but their ability to experience still warrants at least a base level of moral consideration.
If you’re a humanist atheist and a morally motivated vegan or vegetarian, you’re likely to be a sentientist. Although you may be unfamiliar with the term, the ethics will probably fit. However, the vast majority of people around the world disagree with sentientism in action, if not in belief. Many, while using evidence and reason daily, still grant the validity of supernatural or revealed knowledge. Others don’t grant moral consideration to animals and use products that require their suffering and death. Still others don’t grant proper moral consideration to sub-groups of humans, based on gender, sex, skin color, race, sexual orientation, disability, nation, tribe or some other classification or boundary.
How Can Sentientism Help Us?
Sentientism has much in common with humanism. Like humanism, it is pro-human rights and focused on our common global humanity. It is anti-sexist, anti-racist, anti-ageist, anti-ableist, anti-nationalistic and anti-LGBTQ+phobic. Both humanism and sentientism help us focus on what we have in common—our humanity and our sentience. While identity politics can help identify problems and provide mutual support within groups, humanism and sentientism can develop collective solutions that we can all identify with and work on together.
Like humanism, sentientism is pro-science, reason and evidence and therefore against fabrication, fake news, unsubstantiated conspiracy theories, cultural relativism and religious and supernatural thinking. All the problems and opportunities we face—from the existential threats of climate change, nuclear war and biological or technological development, including AI, to the immediate challenges of global poverty, conflict prevention, development and health—are better addressed with facts and critical thinking, rather than dogma.
There are two areas in which sentientism goes further than humanism. For many, animal welfare is a critical issue in its own right, given the more than 100 billion animals we kill every year for food, drink and other animal products. Transitioning away from animal farming is also an important step towards reducing our negative impact on the environment in terms of land, water and energy use, emissions and pollution. While many humanists (including Humanists UK) already grant moral consideration to non-human animals, sentientism makes that explicit, as it views causing the suffering and death of sentient animals as ethically wrong.
Sentientism also helps us think through and prepare for the implications of general artificial intelligence (GAI). We need to crystallize and evolve our own ethics to help us align the ethics of GAIs safely: the concepts of sentience, evidence and reason help us do that. We also need to think carefully about the rights and moral considerations we might need to grant to AIs themselves as their sentience increases.
Sentientism as a Movement?
Sentientism has remained a fairly niche term since it was developed as a concept by philosophers like Richard D Ryder and Peter Singer in the 1970s. Since then, we have seen important yet separate developments in veganism, vegetarianism and animal rights on the one hand and in the rise of atheism and humanism on the other. These movements now have a plethora of local and international organizations, which build communities, drive activism and conduct lobbying—but there is little that brings the two threads together or underpins them.
There is already an untapped synergy between these movements. In a recent show-of-hands poll of an audience of around a thousand humanists, approximately 40% said they were vegan or vegetarian—a rate much higher than that of the general population. It also appears, again anecdotally, that moral vegans and vegetarians are more likely to be atheists or humanists than the general population. To me, that’s because evidence and reason underlie both viewpoints.
A range of other developments and movements also hint at a latent sentientist philosophy. Environmental and ethical concerns are driving more people to think about the animal suffering we cause and the damage to the planet occasioned by animal farming. The development of artificial intelligence is stimulating new fields of thought about robot rights. People are starting to recognize the limitations of identity politics in improving social cohesion and community building. The effective altruism movement is using evidence and reason to find out how we can do most good for all sentient life.
Maybe it’s time for us to upgrade humanism to sentientism, as an inclusive, well-grounded movement for addressing the world’s problems.
Human culture has enormous inertia and our traditional, in/out group and religious memes run deep. However, our ways of thinking are, fortunately, continuously and relentlessly shaped by reality. The influence of reality has already helped us progress rapidly over the centuries. Evidence- and reason-based thinking proves its worth every day—there is no viable alternative to slowly, skeptically becoming less wrong by observing reality and testing our thinking against it.
Reason and facts are also helping us to build a stronger foundation for our ethics. We are coming to understand more about sentient minds, what our experiences have in common with others and how we can reduce suffering and flourish. While in/out group thinking can seem to work for the in-group in the short term, we’re all learning, sometimes painfully, that we do better as our circles of concern expand and as we co-operate ever more widely—ultimately, with all sentient beings.
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Sentientism reduces the distance between man and beast, and thus makes beasts out of us. This is why it was adopted by those intent to mass hurt other humans, such as the ancient Indian caste system, or… Nazism (little known: Hitler was vegan; Nazis boosted the rights of animals… to show they were human… which they were not!).
I consider it a downgrade, and here’s why: I start with the assumption that all political actions have costs. Harming the personal preferences of other people is rarely a free action. Moralism is not a magic spell that makes it a free action. I also start with an assumption that humanism is hard to defend already, has many enemies, does not convince all people, and is of limited use to any of us already. What does humanism do for me? One of my preferences is not to be tortured. Another one is to prevent people who’ve net-benefited me from being tortured against their will. So a prohibition on torture of human beings is good for my preferences. If humanists help with that goal in political practice, they rank higher on my ally list and lower on my enemy list for that reason. However, humanism is already uneconomical. Even the torture… Read more »
Read it and weep:
https://en.wikipedia.org/wiki/Shechita
I think that it is in principle possible for a farm animal to have a flourishing life with minimal unncessary suffering. This combined with the fact that consumption of animals gives humans a lot of pleasure and contributes to human flourishing a symbiotic relationship btween humans and farm animals should be possible so that both profit. I don’t consider the painless killing of farm animals to be wrong. That’s why i am against veganism.
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Jamie, Thanks for the very insightful article. I agree with almost everything you’ve written and would be proud to identify myself as a sentientist (although I do wish the term itself was less awkward; it suffers from the same defect as “speciesism”). However, I have to take issue with your prediction that this view “will eventually become our predominant way of thinking.” As a philosophy instructor who addresses the issue of animal rights with my students, I’m depressingly familiar with the common reactions to arguments in favor of vegetarianism. From my perspective, the case for reducing or eliminating animal products in our diet is all but irrefutable. (1) It’s wrong to inflict unnecessary suffering on sentient beings. (2) Animals are sentient beings. (3) Factory farming inflicts massive amounts of suffering on farm animals. (4) The vast majority of meat, dairy and eggs Americans consume derives from factory farms. (5) Humans… Read more »
Is there a limit to the number of replies I can post in a thread?
There is a problem with extending the “circle of concern” to include sentient animals. They are not in charge of their own lives and destinies, we are. The rights we want to extend to all humans include the right to self determination, we cannot extend these right to animals, or at least not to farm animals. The ultimate success of veganism and vegetarianism would not be the “flourishing” of farm animals, it would be their extinction. Depending on the level of suffering in these animals current lives this may still be a kindness. Vegans often compare our treatment of farm animals, with some justification, to slavery but they are very different. Would the abolition of slavery have been an unambiguous good if it had meant the extinction of those who used to be slaves? When it comes to “wild” animals the situation is, if anything, even more ambiguous because the… Read more »
No.
You are welcome to believe and do as you like, but the minute you start telling me what I can eat or not you’ve crossed a line. I’ve an elk, deer, and bear tag for the season that opens in 2 weeks and I intend on filling them. When humans stop killing each other in the most despicable ways, we can have a discussion. Animal rights supporters are often violent human haters who troll with death threats against people’s children. No thanks.
For anyone interested in sentientism as a topic – we run a friendly, international discussion group here: https://www.facebook.com/groups/sentientism/ All welcome – you don’t have to see yourself as a sentientist to join in. There’s a sub-reddit https://new.reddit.com/r/Sentientism/ and a Twitter account + list too https://twitter.com/sentientism.
I love the article as well as the philosophy. One caveat I would put forward, however, is to be careful to distinguish between cultural relativism and moral relativism. They are not the same. In this article you are likely referring to moral relativism as a perspective to avoid, but you use the term cultural relativism instead. Cultural relativism suggests that certain cultures are superior to others, and this is a concept that is difficult to dispute if one uses impartial facts and evidence. Thus, I would argue that moral relativism is abhorrent, but cultural relativism is not.
Interesting article, thanks Jamie (and for the link!) I’m am atheist, but I wonder if religious people who otherwise agree with sentientist principles might question the necessity of explicitly including atheism in the philosophy?