I figure morality as a topic is popular enough and important enough and related-to-rationality enough to deserve its own thread.
Questions, comments, rants, links, whatever are all welcome. If you're like me you've probably been aching to share your ten paragraph take on meta-ethics or whatever for about three uncountable eons now. Here's your chance.
I recommend reading Wikipedia's article on meta-ethics before jumping into the fray, if only to get familiar with the standard terminology. The standard terminology is often abused. This makes some people sad. Please don't make those people sad.
Someone can want to maximize utility**, and this is not necessarily irrational, but if they do this the are choosing to maximize something other than their own well-being.
Perhaps they are being altruistic and trying to improve someone else's well-being at the expense of their own, like in your torture example. In this example, I don't believe that most people who choose to save their family believe that they are maximizing their own well-being, I think they realize they are sacrificing their well-being (by maximizing utility** instead of utility*) in order to increase the well-being of their family members. I think that any one who does believe they are maximizing their own well being when saving their family is mistaken.
Perhaps they do not have any legitimate reason for wanting something other than their own well-being. Going back to the gold cube example, think of why P wants the cube to exist. P could want it to exist because knowing that gold cubes exist makes them happy. If this is the only reason, then P would probably be perfectly happy to accept a deal where their mind is altered so that they know the cube exists, even though it does not. If, however, P thinks there is something "good" about the cube existing, independent of their mind, they would (probably) not take this deal. Both of these actions are perfectly rational, given P's beliefs about morality, but in the second case, P is mistaken in thinking that the existence of the cube is good by itself. This is because in either case, after accepting the deal, P's mental state is exactly the same, so P's well-being must be exactly the same. Further, nothing else in this universe is morally relevant, and P was simply mistaken in thinking that the existence of the gold block was a fundamentally good thing. (There might be other reasons for P to want the cube. Perhaps P just has an inexplicable urge for there to be a cube. in this case it is unclear whether they would take the deal, but taking it would surely still increase their well-being)
It seems implausible to me that this function could exist independent of a mind or outside of a mind. You seem to be claiming that two people with identical mental states could have different levels of well-being. This seems absurd to me. I realize I am not provide much of an argument for this claim, but the idea that someone's well-being could depend upon something that has no connection with their mental states whatsoever strongly violates my moral intuitions. I expected that other people would share this intuition, but so far no one has said that they do, so perhaps this intuition is unusual. (One could argue that P is correct in believing that the cube has moral value/utility independent of any sentient being, but this seems even more absurd)
In any case, I think S is basically equivalent to saying that utility (or moral value, however you want to define it) reduces to mental states.
P.S. I think you quoted more than you meant to above.
Okay, I just think you seem to have some pretty radically different intuitions about what counts for someone's well-being.
One other thing: you seem to be assuming that the only reasons someone can have to act are either
I think this isn't true, and it's especially not true if you're defining well-being as you are. So you present the options for P as
but these aren't exhaust... (read more)