I recently watched a lecture from linguist Noam Chomsky, in which he alluded to studies that may or may not be coming closer to revealing the objectivity of ethics. A search for such studies has not proved fruitful, so I wonder - is anybody aware of research which has looked at the objectivity of ethical thinking?

Many thanks.

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    The problem with your search is that you are using wrong terms. Whatever principles or mathematics of consciousness might be they are not ethical principles. Ethics is concerned with something else, it is about guiding behavior and has little to do with private experiences and consciousness. So objectivity of ethics (which is a separate problem) is not what you are looking for. What you need is something like Neuroscience of Consciousness.
    – Conifold
    Aug 23, 2021 at 23:17
  • Thank you @Conifold. Yes, I did suspect that I would need to expand my search to something along these lines. But why would these principles or mathematics of consciousness not include ethical principles? It seems to me natural that the latter would be of some importance somewhere along the line. Aug 24, 2021 at 0:14
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    A claim like "consciousness is one" is just nonsense. What is it supposed to mean? What does it mean in terms of experiences or physical phenomena? Perhaps you have a picture in your head of what it means, perhaps you don't, but your job is to create a clear and unambiguous picture in my head, and by saying "consciousness is one" you do not achieve that.
    – causative
    Aug 24, 2021 at 3:23
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    It sounds more like a religious mantra than a definite proposition.
    – causative
    Aug 24, 2021 at 6:44
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    In that case I recommend deleting the parts about consciousness since they only cause confusion and make it very unclear what you are looking for. Objectivity of ethics is defended in moral realism, but it has little to do with consciousness and surrounding issues.
    – Conifold
    Aug 24, 2021 at 11:53

1 Answer 1


I would link ethics to consciousness, through intersubjectivity, with the mirror neurons needed for learning by copying, leading to empathy, & principles like The Golden Rule, and the Categorical Imperative, and also underpinning the extended human capacities for communication. Discussed here: Is the Categorical Imperative Simply Bad Math? :) But, morality is intrinsically a social phenomena, so I'd look to Durkheim's sociological view of religion, for understanding how contention between moral systems has been about the binding power of enacting 'shared attitudes to sacred things', eg habeus corpus & jury trials, as much as altars. See Haidt's Moral Foundations Theory for how agrarian vs pastoral societies seem to have different moral values.

Chomsky believes in an 'innate moral grammar', by analogy with his views on language. See 'Is there a Sense of Justice? Comments to Noam Chomsky on Innate Human Morality'. I'd say it faces a similar problem, of being barely falsifiable. It ends up being that whatever biology is found, it is called innate. But biology & evolution are profoundly versatile & flexible, as are minds & culture.

Consider the puzzle of the almost complete uniqueness of humans, in their having sex overwhelmingly in private, discussed here: How do ethicists tackle the question "Is it immoral to have sex in public places?" Is it possible to use rational and empirical ideas to answer? Is it innate biology? The rarity implies it isn't. I'd say game theory, & the 'reprogrammability' of social dynamics by hijacking shame & disgust into cultural structures explains it (it helps us cooperate better, but it hasn't been a rational or even conscious choice). But then it can be asked, is that hijacking of evolved responses by culture, biology? You can shift the goalposts & say it's 'innate culture-making' or whatever.

The Dunbar number shows our neocortex evolved for navigating social landscapes & impulse inhibition, so really culture & biology have converged. And I'd suggest psychopathy, and other conditions, imply that different or less consistent pressures could result in very different outcomes over short evolutionary time-scales. The persistence of a low percentage of psychopaths across every culture, is more readily understood through game theory, than purely as a pathology or developmental failure. Anyway, you didn't ask for a critique.

Probably what Chomsky has in mind is work of people like Yale psychologist Paul Bloom, eg 'The Moral Life Of Babies'. See a good summary of the history of the issue & current science here: Is Humanity's "Moral Sense" Inherited or Nurtured?.

For me, it's like the nature/nurture debate about humans in general: largely an obscuration rather than a help, to good discussion & science.

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