Susan Greenfield explores how the human nature of future generations could be on course for a dramatic alteration, arguing that the current revolution in biomedical science and information technologies will have a huge impact on our brains and central nervous system. She believes that the society in which future generations will live and the way they view themselves will be like nothing our species has yet experienced in the tens of thousands of years to date. At the beginning of the 21st century, we may be standing on the brink of a makeover far more cataclysmic than anything that has happened before. As we appreciate the dynamism and sensitivity of our brain circuitry, so the prospect of directly tampering with the essence of our individuality becomes a possibility.