"At MIT last week, Kurzweil described a future in which he's convinced immortality -- or a drastically longer life span -- will be possible thanks to emerging technologies. His new book, which will hit stores in a few weeks, outlines a special 'longevity program' of diet, exercise and nutritional supplements aimed at slowing the aging process...I'm really not sure about this one. I mean, can you be unemployed forever? Or retired forever? And what about the people you don't like?
...Kurzweil acknowledged that science today can't halt aging, but he said he believes science will develop age-defying or even age-reversing techniques within 10 to 20 years, thanks to advances in biotechnology and nanotechnology.
He described three stages or "bridges" on the purported road to immortality. First is his healthy living program designed to correct "metabolic imbalances" and keep people alive long enough to benefit from the second stage. In stage two, a decade or so away, he contends biotechnology advances will block diseases and slow aging, because the decoding of our genome is already leading to tissue-engineering techniques for regrowing cells and organs, and to the creation of genetically targeted drugs and gene therapies.
These techniques, he said, should help some people reach the third stage -- about 30 years away -- when nanotechnology will allow humans to radically rebuild and extend their bodies with help from "nanobots," itsy-bitsy robots smaller than human blood cells that will slip into our bloodstreams to fix DNA errors, fight pathogens and expand intelligence.
At that point, he declared, humans may be able to live forever."