AIs should not be modeled too closely after humans

Humans, like all other animals, are evolutionary hacks. Humans have vestigial organs like the appendix. Our jaws are too small to accept wisdom teeth.  The wiring from our retinal cells passes in front of the retina. Some of us are born with residual tails.  Males have nipples. Similarly, penguins, though flightless, have hollow bones. Boa constrictors have vestigial hind legs. etc. etc. Our brains and minds are kludges too.  We know of various examples of human irrationality. (See, for example, D. Ariely, Predictably Irrational, Harper Collins, 2008) An AI can be more rational, more intelligent, than humans are. After all, unlike humans, AIs really are intelligently designed.