In my first post on Philip Kitcher’s The Ethical Project I outlined his main argument. In the second post I addressed his account of the evolution of our moral psychology, and filled in a few gaps with my own account that I’m elaborating in my PhD thesis. In this post I look at moral disagreement and functionalism
People disagree about moral issues. There’s probably no other statement in ethics that is as uncontroversial. But what such disagreement means, and how to resolve it – if it’s resolvable at all – is a hotly contested topic.
But if we take the moral functionalist approach – as espoused by Kitcher, and endorsed by myself in my thesis – then we can gain a crucial insight into the origins, and possible resolutions, of moral disagreement.
Let’s start with some typical disagreements. Person A says lying is always wrong. Person B says lying is sometimes right. Then they argue. We wouldn’t be surprised if one appealed to a moral norm they believe in, such as “do not lie”. Another might suggest that lying is against the will of god. Or they might say that lying causes harm to someone’s autonomy. Or that it reduces the overall happiness, and overall happiness is the greatest good. And on they go.
Note that these are all justifications.
Now, comparing justifications is one way of conducting an ethical debate. But I think the evidence suggests that many of our justifications for our moral norms are spurious. If you don’t happen to believe in moral truths or in a divine moral authority (as I don’t), then you can immediately question appeals to them as a defensible justification.
There is also ample moral psychology research that suggests we are easily confused about the justifications of our moral norms. Jon Haidt’s ‘moral dumbfounding’ and the ubiquitous trolley dilemmas show that people offer a range of different justifications seemingly as post-hoc rationalisations for deeply held intuitions about right and wrong. So it’s not the justifications that are doing the heavy lifting, it’s something else.
You can also see this in many contemporary moral debates – such as over abortion or over the moral status of social welfare – where two interlocutors offer their arguments, and then have them torn to shreds by the other side, but no-one changes their mind. Sigh.
Now, I think there are good justifications for certain moral practices. I’m just sceptical whether the justifications that most people cite in everyday moral discourse actually are the right kind of justifications.
So, to understand moral disagreement – and where it really occurs – we need to look elsewhere. And this is where functionalism comes in.