How’s this for a dystopian future: You finally receive your personal robot assistant, delivered to your door by Amazon drone. You unpack the shiny new machine, dust off the Styrofoam peanuts, and charge up the batteries. Then you switch it on and lead it to the kitchen so it can cook you dinner. The robot points its camera at you, waiting. Suddenly you realize in horror that your assistant doesn’t know how to cook, either—you’re supposed to teach it.
To prevent this nightmare dinnertime s