A Watched Pot Never Boils
What’s the use of watching? A watched pot never boils. [1848 Gaskell, Mary Barton]
A kettle that is aware of being watched and only boils when ignored. All aspects of the kettle are simulated: the sounds of boiling are synthesized- even the steam is cold! The kettle is aware of observers with three cameras that watch for faces, using computer vision techniques.