The "Dreamachine", at Sussex University's Centre for Consciousness Science, is just one of many new research projects across the world investigating human consciousness: the part of our minds that enables us to be self-aware, to think and feel and make independent decisions about the world. By learning the nature of consciousness, researchers hope to better understand what's happening within the silicon brains of artificial intelligence. Some believe that AI systems will soon become independently conscious, if they haven't already. But what really is consciousness, and how close is AI to gaining it? And could the belief that AI might be conscious itself fundamentally change humans in the next few decades?
