Daylight changes constantly, and a well-designed home should change with it. Tunable lighting shifts colour temperature through the day — cool and bright in the morning, warm and low at night — while automated shades manage the sun that pours in between.
The magic is in coordinating the two. When lighting and shading run on one system, a single scene can raise the shades, lift the lights, and start the morning, or reverse all of it for a film.
Done well, no one notices the technology. They just notice that the house always seems to be lit exactly right.