Extropianism, also referred to as the philosophy of Extropy, is an "evolving framework of values and standards for continuously improving the human condition".Extropians believe that advances in science and technology will some day let people live indefinitely. An extropian may wish to contribute to this goal, e.g. by doing research and development or by volunteering to test new technology. Extropianism describes a pragmatic consilience of transhumanist thought guided by a proactionary approach to human evolution and progress.