Explore a controversial TEDx talk by neurochirurgeon Sergio Canavero on the concept of consciousness and potential immortality. Delve into Canavero's speculative theories about consciousness existing independently of the brain and surviving death. Learn about his work in neuromodulation and his inventions in cortical stimulation for Parkinson's disease, vegetative states, and stroke rehabilitation. Consider the ethical and practical concerns raised by the scientific community regarding Canavero's cadaver surgeries and claims about nerve regeneration. Examine this thought-provoking presentation with a critical eye, understanding its speculative nature and the questions it raises about the boundaries of medical science and human consciousness.