Writing the interaction flow for the music player offering gestures for play, pause, track-change and volume-adjustment is already a lot more complex than the one I’ve written for a lamp with a simple on and off switch.
The «smarter» the device the more complex the multilinear story flow. Imagining this with a much more elaborated product seems almost crazy, or let’s one think that artificial intelligence definitely will be a must if products ever want to appear really «smart».