Really difficult I think. In fact, I’m not sure we ever will create artificial intelligence, but it would be very cool if we did. Although I wouldn’t want it to end up like Terminator or the Matrix! 🙂
In trying to find artificial intelligence Alan Turing posed a way of testing if a machine is intelligent, it is called the Turing Test. There is a cool wiki on this you may find interesting http://en.wikipedia.org/wiki/Turing_test
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