Is it possible that man could use biotechnology and synthetic biology to completely remake nature as we know it? Lee M. Silver argues for this idea in his book Challenging Nature. I've personally never read it, but I have heard about it's contents.
According to Silver, man could use biotechnology to remake a worldwide Garden of Eden. Diseases could be destroyed, aging stopped, mythological and extinct creatures created, deserts turned into forests, etc.
How plausible is this idea? Could we remake the biosphere as we know it? Or would it be too difficult to be practical?