What moral realists have consistently failed to do, is to describe the way in which that 'moral truth' is knowable or verifiable.
I assume you accept the Theory of Evolution, right? If so, can you answer this:
"How do we REALLY KNOW what is 'most fit' for a species?!"
The short answer is that we typically know, from hindsight, what WAS the most fit, of the available gene variations, over time.
But, I imagine philosophers could break into the same arguments about it, as we are for morality:
"Oh sure, survival and reproduction is good and should be maximized. But, that is merely the axiom you are starting with. Can we REALLY claim that Natural Selection should be selecting for those?”
Even though most of our knowledge about Natural Selection came from hindsight, we can STILL make large-scale predictions about its future. For example: We can predict that bacterial agents will adapt to be immune from anti-bacterial soap, once too many people are using it too often.
The proximate details might be harder to unravel: We might NOT be able to figure out which specific adaptations those bacteria will take. But, that does not make the larger statement any less accurate.
In the same way, moral truth can be knowable and verifiable. So far, most of our knowledge has to come from hindsight: What worked for the best consequences of society, in the past. But, we might be able to make large predictions about our future morals based on what we figure out about it.
That is the essence of Moral Error theory. The 'error' is the idea that these ideas of right and wrong and good and bad, refer to some kind of truth, which is knowable or verifiable in some way, some kind of truth that is not derived from our preferences, which are the product of our genes, our environment and human invention.
That is an assumption they are making, that is not backed by anything.
Moral truth happens to emerge as a property of human societies,
but once emerged, it acts independently of our genes and human intervention. And, it is probably a couple of degrees of separation from the environment, as well.
Yet, if I asked you to prove to me that murder was wrong, using reason and evidence only, and without reference to a tautological moral axiom that you have just assumed, because it is your preference, you would be unable to do that.
Natural forces, beyond our control, tend to bend our morals towards making murder wrong. This is not a preference. This is not an assumption. This, apparently, is an objective, empirical truth. And, it can be verified, in across multiple lines of investigation.
This tendency belies a mistaken assumption which only serves to display naivety of the subject matter, and smacks of arrogance. It is extremely reminiscent of the Creationist tone when interjecting into debates on evolution. I'm sorry if these words sound harsh, but that is how I see it.
Funnily enough I see the arrogant insertion of philosophical fictions, into scientific realms, as reminiscent of the Creationist tone.
Yes, it is perfectly possible to start with a tautological moral axiom such as, 'well-being is good and should be maximised', and then use science to help us work out how we can maximise well-being,
Morality does not really work that way. Well-being is WHAT ALL moral questions end up becoming about. There is no other stable manner in which morality can exist. (according to theory)
It is NOT like we can just decide "'well-being is good and should be maximized". The decision was made for us, long ago, since before we were even humans. That is my point.
but that claim is neither novel,
I did not claim it was novel. I know this is an old idea. Though, I am experimenting in how to convey the idea, using different words.
nor one that is based on logic or evidence.
It is based on the evidence that well-being seems to improve, over time, in an inclined saw-tooth manner; and from scientific experiments that are consistent with the notion (even if it was not directly tested, yet). And, logically, it follows from Natural Selection.
And I'm not a Moral Error theorist... so that was heavy lifting devil's advocacy and I hope you appreciate it.
I do!
I hope you don't take my responses personally.
Yes, that's possible. I'm not sure it's 'true' - As I pointed out, the alternative is that we could be wonky and everybody could be behaving immorally. We accuse entire cultures of this today.
That was only a starting point. We can approximate what might be morally correct, based on what seemed to work in hindsight. And, we can acquire that perspective, in part, by examining current social policy.
The real trick comes in when we investigate that starting information further: Can we identify how it lead to better consequences? Can we identify any sources of deception, such as hidden information as to why it actually lead to bad consequences? And, either way, can we improve upon that for the future?
I think you'd have to connect these photos to increased violence more soundly. Pinker is not talking about this example (I assume you're referring to Better Angels of our Nature). I don't see the connection, which is the relevant point.
Pinker did not go into that example.
But, if I recall, he and others go into the value that the concept of 'human dignity' brings to us. Too much, and we are wasting resources dignifying things to a level they do not really need. Too little, and we are too tempted to treat each other badly, and everyone suffers more.
There might be a minimal level of dignity we could apply to all humans, so that we are less likely to fall into the trap of treating each other like crap, and all of society suffers.
Though, there is also an advantage to be had, by exceeding that level a little bit: Err on the side of slightly too much dignity, rather than too little. So, that we have a margin against dipping too far into the bad end.
It sounds like these anonymized photo examples could be part of that.
The alternate example cases are as I described: we're not saying that everybody's privacy should be violated - just one or two people. The rest of us can be assured we're safe. It still 'sounds wrong'.
It would 'sound wrong' if the rules were arbitrary. Why does one or two people get different rules from anyone else? Can those rules leak into anyone else, including myself and other people I care about?