A form of art created by Lights. It uses similar technology to a light wall, but is instructed one atom at a time. A large intricate sculpture can take millions of years to complete. Each atom is place in a way that the artist believes complements the surrounding atoms. Upon completion the artist will study the sculpture for thousands of years in order to determine everything that pleases as well as displeases them about their work. The Lights who do this believe the process will reveal their weaknesses so they can improve themselves.