The central figure in popularizing futurology is Ray Kurzweil. Despite accepting the biological transformation of humans in the future, Kurzweil does have a strong belief in the basic concept of humans and the human centric philosophy.

As long as Kurzweil observes things about the world outside the human race, he shows no signs of ambiguity. He cites historical facts and data. He has his own views about “who I am” and “what I am” and what the sameness of his self means. His book concentrates on virtually disassembling the human body from start to finish without paying any respect to the human body as an integration of various elements, including cells.