The day is dawning, so they say, when your personal domestic robot will trundle to fulfil your merest whim. It is already possible to program one to make you a cup of coffee. But what if you then decided you'd like a biscuit too - chocolate of course? Jane Lapotaire wanted a biscuit; but the robot didn't want to know. Q.E.D. explores what would be involved in designing a robot that could see, recognise, aim at reach for, hold and hand her this biscuit - and also discovers on the way quite a lot about what people can do.
