If, as Joe believes, human beings are machines, why are we bothering to build artificial intelligence. If we succeed all we will have done is create new humans. And there is a well know, tried and tested way of making new humans which is more fun and much cheaper. Meanwhile it seems that the best definition of artificial intelligence that we have is anything that computers can't do right now. Whereas the definition of human stupidity is everything that humans can do right now. If this sounds harsh this is the week when Embassy staff of many nations are being withdrawn from Ukraine