For the past 30 years, Tom Campbell has focused on scientifically exploring the properties, boundaries, & abilities of consciousness. During that period, he has excelled as a working scientist, a professional physicist dedicated to pushing back the frontiers of cutting-edge technology, large-system simulation, technology development & integration, complex system vulnerability & risk analysis. Tom spent 20 years at the cutting edge of science and technology, developing US missile defence systems.Tom is the “TC (physicist)” described in Bob Monroe’s second book Far Journeys and has been a serious explorer of the frontiers of reality, mind, consciousness, & psychic phenomena since the early 70s. His highly acclaimed work My Big TOE is a model of existence and reality based on his scientific research and firsthand experience. It represents the results & conclusions of careful scientific exploration of the boundaries & contents of reality from both physical & metaphysical viewpoints.