Today many devices we use in everyday life are called "smart". What does it mean? Electronics (at least now) can't be smart, so we speak about intelligence imitation and following rules can be used for measuring its quality:
- Device should do what user wants
- If device doesn't obey user, it must tell user why it doesn't obey in such a way, that user would agree, that he was wrong. This is user misstakes control.
- Device should guess, what user wants, if possible.
That last rule brings the problem.