“Whereas 
  some of my contemporaries may be satisfied to embrace aging gracefully as part 
  of the cycle of life, that is not my view. It may be ‘natural,’ 
  but I don’t see anything positive in losing my mental agility, sensory 
  acuity, physical limberness, sexual desire, or any other human ability. I view 
  disease and death at any age as a calamity, as problems to be overcome.” 
  So writes Ray Kurzweil in this brave new handbook to the human machine.
  
  According to Kurzweil and coauthor Dr. Terry Grossman, we are in the early stages 
  of multiple profound revolutions spawned by the intersection of biology, information 
  science, and nanotechnology. With the decoding of the human genome, many new 
  and powerful technologies are emerging: rational drug design (drugs designed 
  for very precise missions, with little or no side effects), tissue engineering 
  (regrowing our cells, tissues, and organs), reversal of aging processes, gene 
  therapy (essentially reprogramming our genetic code), nanobots (robots the size 
  of blood cells, built molecule by molecule and placed in our bodies and bloodstreams 
  to enhance every aspect of our lives), and many others. Some of these transformations 
  will bear fruit before the ink is dry on this book. As a result, many experts, 
  including the authors, believe that within a decade we will be adding more than 
  a year to human life expectancy every year thereafter.
  
  Bridging the gulf between life today and the distant future—a fantastic 
  voyage nearly all of us can take—will be made possible in three steps. 
  Bridge One involves aggressively applying what we know now, sooner rather than 
  later, to dramatically slow down the aging process. The authors describe how 
  you can, in effect, reprogram your biochemistry to change the ancient programs 
  in your genes. They provide guidance on which supplements will contribute to 
  your health and enhance your vitality based on your particular situation. Bridge 
  Two relies on advances in biotechnology that will allow you to directly intervene 
  to stop disease and actually reverse aging. Finally, in a couple of decades, 
  nanotechnology, Bridge Three, will enable us to vastly expand our physical and 
  mental capabilities by directly interfacing our biological systems with human-created 
  technologies.
  
  With this book, Ray Kurzweil and Terry Grossman point out the way to something 
  humans have only dreamed about until now—the promise of living forever. 
  Readers who are up for the voyage are invited along.