Strawman.Flannel Jesus wrote: ↑Wed Jul 17, 2024 10:51 am Supervenience is a claim about dependence in changes of one thing on changes in another thing.
The common claim is "mental states supervene on brain states".
That means the following things are true:
If person A and person B have the same brain-state, they have the same mental state.
If person A and person B have different mental states, they must also have different brain states.
However, there are potentially situations where person A and person B have different brain states but the same mental state.
The same formulation effectively applies to all other uses of 'supervenience'. So, "moral facts supervene on natural facts" means:
If state A and state B have the same natural facts, they have the same moral facts.
If state A and state B have different moral facts, they must also have different natural facts.
However, there are potentially situations where state A and state B have different natural facts but the same moral facts.
So far, your only example is about the mirror neurons of a person. "If you change the mirror neurons of this person, that changes his moral facts in some way." As far as I can tell, the only moral fact that changes about a person if you change their mirror neurons is how they feel about the morality of various actions.
A person with a shit load of mirror neurons might be unwilling to break someone's knee caps for the mafia, because it feels wrong.
A person with no mirror neurons might be willing to, because it doesn't really feel like anything at all to break the kneecaps of another human.
Changing mirror neurons affects how people feel about the morality of things they might do. If that's not the kind of "moral fact" you intend to talk about, VA, you aren't doing a good job of clarifying your position.
People are showing curiosity in your ideas but you aren't putting any real effort into clarifying what they are.
If state A and state B have the same natural facts, they have the same moral facts.
If state A and state B have different moral facts, they must also have different natural facts.
However, there are potentially situations where state A and state B have different natural facts but the same moral facts.
Give us some more edifying examples of moral supervenience using the above three lines as a guide.
This post was written by a human being.
I had not referred to 'feel' i.e. the subjective feelings in relation to mirror neurons.
What I am referring to is the moral competency, i.e. moral quotient [MQ] like IQ.
Say human intelligence [IQ] supervened upon a certain set of neurons in the human brain.
If there are changes in the set of neurons related to intelligence, there will be a corresponding change in the intelligence competence [IQ] of the person.
A person may feel happy, proud and egoistic with his intelligence competence and feel bad if his intelligence competence is reduced to the various reasons; this does not obviate the fact that a certain set of neurons in his brain supporting the concept of intelligence in all human beings.
So, intelligence is a fact of human nature which is represented physically by a specific set of neurons in the brain.
So with morality, I am interested in the moral facts, i.e. the moral competence with reference to 'killing of humans' related to empathy as support by a specific set of physical neurons in process and actions.
ALL humans are evolved with mirror neurons of which some are related to morality, i.e. their associated activities are moral facts as supervened upon natural facts.
When a person's mirror neurons are damaged or dormant, a person could just kill without any feelings at all. Many murderers declared they just do not understand how they ended killing someone.
Even for moral judgements from moral feelings, they supervened on a specific set of physical neurons in the brain that is universal in the human brain.
The above is a complex issue, but the general point is based on the principles of supervenience, there are moral facts supervened upon natural facts as explained above and they are not related to subjective feelings.
The above justified moral facts are contrasted with 'there are moral facts because God said so or x said so.'