Here’s an excerpt from a very readable article that discusses transhumanism, its proponents and opponents.
If we have the know-how to safely cure spinal cord injuries, cheat death, and tint your skin green, why keep it off the market? On the other hand, how do we balance individual desire and freedom against the needs of others, including other creatures? Defining life and death, already touchy issues, will become even more volatile in coming decades. Finally, there’s the question that seems destined to haunt the 21st century: Will we control our technologies, or will they control us?”