What makes us conscious?Why do people in coma show no signs of awareness, while others under psychedelics report profound conscious experiences?Can we measure consciousness, and if so, can we restore it when it is lost?In this discussion, we will explore how Neuroscience and Physics come together to help us understand consciousness and its alterations—ranging from deep unconscious states like coma to heightened experiences induced by psychedelics. Scientific research suggests that the richness of our conscious experience is linked to the complexity of brain activity—how diversified the interactions between different brain regions are. In states like coma or deep sleep, this complexity is reduced. In normal wakefulness, it is higher. And under psychedelics, it may reach even greater levels, aligning with the idea of an expanded consciousness. By increasing brain complexity, psychedelics show promise in breaking rigid thought patterns associated with depression, OCD, and PTSD, opening new possibilities for therapy.Join us as we discuss ideas at the frontier of modern neuroscience with real-world implications—from detecting hidden consciousness in unresponsive patients to the emerging role of psychedelics in mental health treatments.