It sounds like the plot of science-fiction movie, but academics have long debated the possibility of conscious artificial intelligence.
Despite much thought and ingenuity, neuroscience still struggles to define what consciousness is.
Scientists are collecting stories of the near-death experiences of coma patients.
Each week, patients from across Europe are wheeled in to the Coma Science Group in Liège, united by grief, hope, and desperation.
A story of mind reading, brain injury, and attempts to rescue the hundreds of thousands of patients suffering from disorders of consciousness.