Wouldn’t a robot with the adaptability and trainablility of a human be, in effect a human? I say this only partially in jest. At one time I drove an old jalopy that developed a broken throttle cable, being poor i contrived a fix by splicing the two ends together with a nut and bolt. I joke to a friend the operation required three hands, one to hold the cable together, one to hold the bolt and one to turn the nut. I often reflect on what would be required to “program” a machine to perform such an operation; under the dash where the steering column transited the floor board, no less.

Of course robots aren’t expected to do such tasks, that’s just an example of a complex task that seems impossible to implement. And there are an infinite number of such tasks in the human repertoire.