Kurzweil: "In the eighteenth century, we added a few days every year to human longevity; during the nineteenth century we added a couple of weeks each year; and now we’re adding almost a half a year every year. With the revolutions in genomics, proteomics, rational drug design, therapeutic cloning of our own organs and tissues, and related developments in bio-information sciences, we will be adding more than a year every year within ten years."

Dan Luu: "Kurzweil pushes the date this is expected to happen back by more than one year per year (the last citation I saw on this was a 2016 prediction that we would have unbounded life expectancy by 2029), which is characteristic of many of Kurzweil's predictions."