Transhumanism is an international intellectual and cultural movement supporting the use of new sciences and technologies to enhance human mental and physical abilities and aptitudes, and ameliorate what it regards as undesirable and unnecessary aspects of the human condition, such as stupidity, suffering, disease, aging and involuntary death. Transhumanist thinkers study the possibilities and consequences of developing and using human enhancement techniques and other emerging technologies for these purposes. Possible dangers, as well as benefits, of powerful new technologies that might radically change the conditions of human life are also of concern to the transhumanist movement.
Although the first known use of the term "transhumanism" dates from 1957, the contemporary meaning is a product of the 1980s, when a group of scientists, artists, and futurists based in the United States began to organize what has since grown into the transhumanist movement. Transhumanist thinkers postulate that human beings will eventually be transformed into beings with such greatly expanded abilities as to merit the label "posthuman."
Transhumanist foresight of a profoundly transformed future humanity has attracted many supporters and critics from a wide range of perspectives. Transhumanism has been described by one outspoken opponent as the world's most dangerous idea, while a proponent counters that it is the "movement that epitomizes the most daring, courageous, imaginative, and idealistic aspirations of humanity."