The CEV of humans, if it exists, would depend in part on those things all human minds have in common. Chimpanzees have been endowed with a different sort of mind — and, I expect, different values.
So, what all humans have in common is that their most dangerous enemy are other humans. I don't see how that's getting us anywhere good.
[edit]I forgot to add- I'm looking for specificity here. What do humans care about that chimps don't? If chimps thought ten thousand times faster, would they care about those things?
Taken from some old comments of mine that never did get a satisfactory answer.
1) One of the justifications for CEV was that extrapolating from an American in the 21st century and from Archimedes of Syracuse should give similar results. This seems to assume that change in human values over time is mostly "progress" rather than drift. Do we have any evidence for that, except saying that our modern values are "good" according to themselves, so whatever historical process led to them must have been "progress"?
2) How can anyone sincerely want to build an AI that fulfills anything except their own current, personal volition? If Eliezer wants the the AI to look at humanity and infer its best wishes for the future, why can't he task it with looking at himself and inferring his best idea to fulfill humanity's wishes? Why must this particular thing be spelled out in a document like CEV and not left to the mysterious magic of "intelligence", and what other such things are there?