Gear Live - Are Nanobots The Key To Immortality?:
"It seems that author and scientist Ray Kurzweil believes that human immortality is a mere twenty years away. Rather than chasing the fountain of youth, however, Ray believes that nanobots are the secret ingredient needed to keep a person alive forever - barring a major accident. Nanobots are microscopic robots which are the size of a human blood cell. They swarm through the body repairing brain cells, bones, muscles, and arteries. In fact, Kurzweil believes that you can download programs to these nanobots which will then have them compensate for genes that may cause health problems. Sounds odd, I know - until you see that he is an extremely accomplished scientist and inventor."
