CEV is supposed to preserve those things that people value, and would continue to value were they more intelligent and better informed. I value the lives of my friends. Many other people value the death of people like my friends. There is no reason to think that this is because they are less intelligent or less well-informed than me, as opposed to actually having different preferences. TimS claimed that in a situation like that, CEV would do nothing, rather than impose the extrapolated will of the majority.

My claim is that there is nothing -- not one single thing -- which would be a value held by every person in the world, even were they more intelligent and better informed. An intelligent, informed psychopath has utterly different values from mine, and will continue to have utterly different values upon reflection. The CEV therefore either has to impose the majority preferences upon the minority, or do nothing at all.