Null Object was a late project by Gustav Metzger, presented in 2012 in collaboration with the London-based group Fieldworks. In the work, Metzger wore an EEG brainwave interface and attempted to think of nothing for 20 minutes. The recorded brainwave data was then converted by custom software into 3D shape information and sent to an industrial robot, which carved into a block of Portland stone. The result was a physical inscription of “void” inside the stone.
The project is described as an extreme attempt to remove the artist’s self-centered presence and shift creative agency away from the human subject toward the interaction between data and matter. Rather than dematerializing the physical object, it turns “the idea of nothing” into a monumental void embedded in stone. In this sense, Null Object reframes “null” as a productive category within self-destructive art. The work also emphasizes a process in which the artist’s intention is reduced to a minimal condition, while the final form emerges through the translation of EEG data into robotic cutting operations.