Aubrey de Grey has emerged as an outspoken advocate for nanomedicine and longevity.
"In fact, the single best metric, the single best piece of evidence giving an impression of how fast things are moving and have been moving, is what happened with my book: The hardback came out in 2007. When they published a paperback edition a year later, we were given the chance to update the text. They didn’t want us to do too much because, you know, it’s work. But it was impossible not to do too much. So we ended up simply writing an entire new chapter, an afterword. That was how much there was. It took a whole regular-sized chapter just to cover one year of development across all of the various SENS components."