The most that would show is what humans tend to prefer, not what they should prefer.
You’re going to have to explain what meta-ethical view you hold such that “prefer on reflection given full knowledge and rationality” and “should prefer” are different.
I don’t think neuroscience would tell you what you’d prefer on reflection given full knowledge and rationality.
Sufficiently advanced cognitive science definitely will, though.
I’m skeptical of that.
The most that would show is what humans tend to prefer, not what they should prefer.
You’re going to have to explain what meta-ethical view you hold such that “prefer on reflection given full knowledge and rationality” and “should prefer” are different.
I don’t think neuroscience would tell you what you’d prefer on reflection given full knowledge and rationality.
Sufficiently advanced cognitive science definitely will, though.
I’m skeptical of that.