Because of this passionate trust in technological advancement, transhumanists generally see all technologies, as long as they don't jeopardize the non-corporeal consciousness of a person, as being beneficial both to society and to the happiness and advancement of the person.  Transhumanists see benefit not only in technologies that address medical necessities, but also aesthetic or recreational demands. They support advances in cybernetics, genetic engineering in clinical settings, embryo design, and other technologies that allow individuals to take control of their biology, and the human species to take control of evolution.