Oh my, I thought I was done for a while chastising skeptics like Sam Harris on the relationship between philosophy, science and morality, and I just found out that my friend Michael Shermer has incurred a similar (though not quite as egregious as...
The idea would run something like this: “Scientists have conceded the high ground of resolving mathematical problems to mathematicians, just when the new disciplines of evolutionary mathematics and neuro-mathematics are coming on line.” My point is, I hasten to say, not that ethics is like math, but rather that evolutionary math and neuro-math would be giving us answers to different questions. An evolutionary approach to understanding our ability to reason mathematically could give us clues as to why we are capable of abstract thinking to begin with, which is interesting. “Neuro-mathematics” could then provide answers to the question of how the brain works when it engages in mathematical (and other types of abstract) thinking. But if you want to know how to provePythagoras' theorem, neither evolutionary biologists nor neurobiologists are the right kind of experts. You need a mathematician.
Similarly with ethics: we need an evolutionary understanding of where a strong sense of right and wrong comes from as an instinct, and a neurobiological account of how our brains function (or malfunction) when they engage in ethical reasoning. But it is the moral philosopher, not the evolutionary biologist or the neurobiologist, we should check with if we want to know whether a particular piece of ethical reasoning is logically sound or not.