This is a large Big Tech office in a mostly cloudy city. I'm working in a corner with lots of very large windows. Previously, we would only block the light when direct sunlight was shining in, (only in the late afternoon). Then a new person moved to an empty desk, and he closes all the curtains. There is plenty of desk space in the office not close to windows, or close to windows where the curtains are mostly shut. I asked him if he can move to a different place, and he declined. When he's no...