If we liked other things though, wouldn’t those be as permissible as any others?
I’ve heard it said that there is a selective advantage to some of our behaviors, but how do we know that? How can we determine what behaviors will contribute best to the survival of our species for a long time in the future? We can guess what those will be, but if those guesses are driven by natural laws themselves – then the genocidal maniac has just as much right to his behavior as anyone else. He may have an idea that for the survival of the species, it’s best to destroy a race of people. The only thing that proves him right is the course of history – perhaps centuries in the future.
When materialism says that order and purpose are the products of unintelligent, unconscious physical material and fixed natural laws, then that appears to be a contradiction.
Some have said (PZ Myers for example) that the only purpose that materialism offers is self-interest. So, people will do what they think benefits themselves (and this includes things that benefit human society because they think it benefits themselves).
But there are no natural laws that indicate what “self-interest” is, or how human beings know what is best for themselves.
Even if it is true, then the point stands – materialism is an amoral system. It can yeild moral actions or immoral actions and those have equal value.
In fact, one cannot measure the moral quality of any action in a materialist view.
The only measure one can use is “did that help the person’s self-interest”?
But every action can and will be justified by that view.
Probably yes.
The “then the genocidal maniac has just as much right to his behavior as anyone else” is ridiculous. People are different… skin color, eye color, hair color, history, freckles, weight, bone structure, etc. The reason genocide is not accepted at all is because the idea of discrimination only leads to more discrimination, which spirals into places like Afghanistan where you just don’t want to go visit. Those are not happy places. Technically we wage genocide against roaches, rats, and other pests. Don’t get me wrong, genocide is very very bad, but is it bad just because they killed a lot of one type of person, or is it bad because they were killing people? I would say the latter, in which case it’s comparable to all willful murder - which unfortunately is a common and I think unavoidable thing in our species.
It’s a contradiction that order can come from unintelligent physical things? The old faithful geiser, the sailing stones, the salt flatts, the steadyness that the sun burns, the steady orbits of the planets, the moon that always faces us with the same side, the rock bridges, vallys carved by glaciers… I see plenty of order that is natural… and those are just some of the inorganic things!
PZ is an idiot. There, I said it.

Self interest is indeed a part of it, but it’s beyond what you think of as self interest. It’s also unconscious, sociological, genetic, and seemingly random. However, you can’t look at how we pamper song birds but exterminate rats and claim we ignore self interests - this is a fact of life. At the end of the day, if you don’t take care of *enough *of your self interests, you likely won’t survive and thus your ideas regarding how you should live cease to matter.
Self interest is not just one thing, as I said before, it’s more complicated than that. There is not one law or way it works just like there is not one way that people earn a living.
It’s amoral?? This depends on how you define morality. You view it as external, which is why you see it as amoral. I see morality as defined and built into us, and thus it is actually one of the tools of self interest itself. Basically, we’re back to a previous topic where I stated in another thread that I think morality created the church and not the other way around, but then the church (and secular government) refined it to allow for society to prosper in greater numbers and advancement. In short, you see morality as the path of Christ as described by the church. I see that as simply guildlines for society based upon the moral fabric built into us by natural selection and self interest.
One thing is for certain though… it’s complicated.
