Our collective obsession over "natural" light is the main driver behind things like open-plan offices. The sun isn't magic; why don't we define natural light b

Our collective obsession over "natural" light is the main driver behind things like open-plan offices. The sun isn't magic; why don't we define natural light by its spectrum as a function of time, and then replicate it with LEDs and a bit of software? This wouldn't even cost much to run, because the demand curve matches the supply curve of solar energy.