Maybe I misunderstood your original comment. You seemed to be arguing that moral progress is possible based on convergence. My point was even if it does reach a globally convergent value, that doesn't mean that value is objectively optimal, or the true morality.
In order to talk about moral "progress", or an "optimum" value, you need to first find some objective yardstick. Convergence does not establish that such a yardstick exists.
Well, of course you can define "objectively optimal morality" to mean whatever you want.
My point was that if there is natural evolutionary convergence, then it makes reasonable sense to define "optimal morality" as the morality of the optimal creatures. If there was a better way of behaving (in the eyes of nature), then the supposedly optimal creatures would not be very optimal.
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.