> how hard was it to develop the genes that separate human intelligence from other primates? Well, less than impossibly hard. Here's an interesting spin on thi

> how hard was it to develop the genes that separate human intelligence from other primates? Well, less than impossibly hard. Here's an interesting spin on this argument: http://diyhpl.us/~bryan/papers2/ai/How%20hard%20is%20artificial%20intelligence%3f%20Evolutionary%20arguments%20and%20selection%20effects%20-%20Shulman%20-%20Bostrom.pdf http://diyhpl.us/~bryan/papers2/ai/How%20hard%20is%20artific... On a related note: http://fennetic.net/irc/human_chimpanzee_brain_differences.png http://fennetic.net/irc/human_chimpanzee_brain_differences.p... And also, this was an interesting exploration of the topic, with in utero electroporation of cortical matter to induce more brain growth: http://core.ac.uk/download/pdf/11034136.pdf http://core.ac.uk/download/pdf/11034136.pdf > Of course, human intelligence is hard to pin down -- for my personal definition I suggest giving up on that question. Even if humans are not intelligent, there's at least one or a few properties of human brain matter that are causing all of these unexpected and unexplained results we observe from its operation.