It's funny how we're going back to centuries-old architectural practices. In the before times we didn't have climate control. In the middle times we had climate control and didn't have to worry about the energy usage. And now we have to return to natural ways of controlling temperatures so we don't spend too much energy on heating and cooling.

But my curiosity is directed at even more extreme examples. How bright and livable could one make a big box with almost no windows these days, if one really tried? (As I'm typing this out the counter-question is of course: why bother?)