Artificial light versus natural light is actually a really interesting topic.

Natural light activates processes in your body that create vitamins to help keep you healthy. It's always a good idea to leave the house every day.

Artificial light can be really beautiful in many situations. For example, if you like to study people, next time you're in a subway station or airport, take note of how the artificial lights emphasize different things about different people.

I like them both. =)