The human brain is simply astonishing; its complexity and abilities are are only just becoming understood, and its capacity for development and the expansion of its capabilities are being shown to be almost limitless. At the heart of it lies a huge conundrum. People have witnessed the “gray matter” that makes up the brain; they have dissected it, cut it up, examined it and microscopically analyzed it - but in all this research and development activity nobody has seen that most elusive of things; nobody has ever seen a “thought.”