@Thomas,
Quote:
Joe isn't omniscient. Even if he can't suggest an objective way, it doesn't prove that there isn't any. Apart from that, it's your assertion that started the thread. That makes it your job to back it up, not Joe's job to refute it.
My argument is based on process of elimination (which is perhaps the best way to prove a negative). I don't think anyone here is arguing for religion as a basis of morality-- and no one here has seriously taken up the case that science is such an objective bases (I hope this is obvious to all here).
So if religion doesn't work, and science doesn't work... what else is there?
Quote:How about game theory?
In your life, you try to as well for yourself as you can, as judged by your values and preferences. The environment in which you try to do this is made up of millions of other individuals who do the same, using their own values and preferences to judge the outcome. In the language of game theory, that constitutes a game. Inevitably, moral and legal rules will emerge as people strike deals with each other for their mutual advantage. These rules are the game's Nash equilibrium. Game theory can tell you, at least in principle, what a stable equilibrium would have to look like, given everybody's preferences.
Now here is an interesting alternative that might lead to an interesting exploration.
Let me start by questioning this statement: "Inevitably, moral and legal rules will emerge as people strike deals with each other for their mutual advantage."
There are certainly lots of examples were the system that emerged was far from mutually beneficial. Slavery was acceptable in many moral systems. As was misogyny.
Our current moral system (i.e. modern Western culture) allows for vast economic disparities-- this is hardly a system of mutual advantage.
I won't dispute that moral and legal rules emerge in any cultural context. I will dispute that the content of the moral and legal rules is determined by mutual advantage.