I was criticising the idea that "all moralities are of equal merit". I was not attributing that idea to you. Looking at:
http://en.wikipedia.org/wiki/Cultural_relativism
...it looks like I used the wrong term.
http://en.wikipedia.org/wiki/Moral_relativism
...looks slightly better - but still is not quite the concept I was looking for - I give up for the moment.
I'm not sure if there's standard jargon for "all moralities are of equal merit" (I'm pretty sure that's isomorphic to moral nihilism, anyway). However, people tend to read various sorts of relativism that way, and it's not uncommon in discourse to see "Cultural relativism" to be associated with such a view.
In this video, Julian Savulescu from the Uehiro centre for Practical Ethics argues that human beings are "Unfit for the future" - that radical technological advance, liberal democracy and human nature will combine to make the 21st century the century of global catastropes, perpetrated by terrorists and psychopaths, with tools such as engineered viruses. He goes on to argue that enhanced intelligence and a reduced urge to violence and defection in large commons problems could be achieved using science, and may be a way out for humanity.
Skip to 1:30 to avoid the tedious introduction
Genetically enhance humanity or face extinction - PART 1 from Ethics of the New Biosciences on Vimeo.
Genetically enhance humanity or face extinction - PART 2 from Ethics of the New Biosciences on Vimeo.
Well, I have already said something rather like this. Perhaps this really is a good idea, more important, even, than coding a friendly AI? AI timelines where super-smart AI doesn't get invented until 2060+ would leave enough room for human intelligence enhancement to happen and have an effect. When I collected some SIAI volunteers' opinions on this, most thought that there was a very significant chance that super-smart AI will arrive sooner than that, though.
A large portion of the video consists of pointing out the very strong scientific case that our behavior is a result of the way our brains are structured, and that this means that changes in our behavior are the result of changes in the way our brains are wired.