I like the idea of the lighting inside simulating the lighting outside you can have supplemental electrical lights to provide enough light to do stuff but if its bright outside it can be brighter and energizing inside when its overcast or evening it can be cozy and relaxing inside.

Id imagine this helps the circadian rhythm a bit but also prevents getting flashbanged when stepping outside during the day and having to wait for the eyes to adjust as much when stepping outside during at night

If we invented mirror batteries, the mirrors could hold onto the sunlight long after the sun has set. /s