From James Clar & Associates:

"On the night of April 28th, downtown Memphis was turned into a public, interactive lighting installation as 9 buildings were integrated with a system that sampled the activity levels from the inside of the buildings and transferred it to the tops to control a dynamic lighting display. "Inside / Out" brings to focus the information of movement and energy within buildings and makes them visible, so as people walked around the South Main gallery district of Memphis they were able to see each building node and it's activity before you enter them. "