The wall is an aggregation of 14 unique bricks that were CNC carved from foam blocks. The bricks aggregate and nest into each other to form the wall without any for nails or glue. The nested bricks are held by friction and connected by 3D printed clamps that cinch them together. Instead of remaining a static partition, the bricks are interactive and responsive to movement. As people move around the wall, the bricks undulate at their centers. A motor pulls the white fabric stretched over each brick inward to its center-- the motion mimics the poking of a belly button. The wall becomes more than a barrier by interacting with its environment. The responsive brick makes it possible to perceive movement on the other side of the wall without having to see it.