Nick Bostrom says technology will help humans manipulate their own minds . Ray Kurzweil predicts humans will be mostly non - biological by around 2030 . Science , computers , technology could replace humans with machines .
Nick Bostrom says technology will let humans manipulate their own biology . Ray Kurzweil predicts humans will be mostly non-biological by around 2030 . Biotechnology , nanotechnology , robotics could merge mankind with machines .