What is this simulation made out of though? What are its functional parts? How does a squishy, wet, and electrically intertwined sponge generate the 3D simulation you are inhabiting right now? The Brain as a Non-linear Optical Computer (BAANLOC) theory proposes that the brain enlists electromagnetic waves to create a powerful computational medium. In other words, evolution has co opted the EM field for its massive parallelism, holistic behavior, and self-organizing tendencies, to unleash its computational potential with non-linear wave interactions. In this article we describe supporting evidence for the Brain as a Non-linear Optical Computer theory and speculate on how it may be implemented by existing neuronal mechanics in the brain.