One of the definitions of "elegance" in interactive design is the ratio of depth to complexity. This is easily understood in the world of video game design, where there's a constant goal of providing a huge amount of gameplay depth to be explored without bogging the player down in endless complicated controls and options — but the same notion can be applied to something as simple as a light switch. You've normally got a ratio of one simple function to one moving part, but the Lightbox has uncovered a new level of elegance by having no moving parts at all.
Awesome Stuff: The Light Non-Switch
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