What we know about the causal origins of our moral intuitions doesn’t obviously give us reason to believe they are correlated with moral truth.
But what we know about morality, we know purely thanks to the causal origin. If you see no obvious connection to moral truth, then either it is purely a coincidence that we happen to believe correctly, or else it is not and you’re failing to see something. If it is purely a coincidence, then we may as well give up now.
What we know about the causal origins of our moral intuitions doesn’t obviously give us reason to believe they are correlated with moral truth.
But what we know about morality, we know purely thanks to the causal origin. If you see no obvious connection to moral truth, then either it is purely a coincidence that we happen to believe correctly, or else it is not and you’re failing to see something. If it is purely a coincidence, then we may as well give up now.