By Manasee Wagh – Popular Mechanics
Some futurists believe that humanity is edging closer than ever to the possibility of “practical immortality.” These tech visionaries aren’t looking at an increased lifespan in the same way as mainstream longevity researchers, though, who are working to slow aging so we can live for up to a century in relatively good health. Instead, we can extend our natural lifespan by a factor of ten, according to science, technology, and medical visionaries like Ray Kurzweil, Ian Pearson, and Aubrey de Grey.