> I think it's perfectly possible that, within my lifetime, significant or indefinite life extension could become possible. We know so little about the human b

> I think it's perfectly possible that, within my lifetime, significant or indefinite life extension could become possible. We know so little about the human body that I find this claim very difficult to substantiate. We're only up to the task of extending 25% of mice lifespans, with no end in sight to resolving the adverse side effects of aging in humans so life extension doesn't become a horrid, protracted end of life grinding agony. If our entire economic system was switched from the banking system having the first crack at newly-issued capital to the healthcare industry with special emphasis upon gerontology-oriented sectors (with the near-infinite demand for healthcare, the inflation could be impressive), then I would grant a possible doubling (which counts as significant when stacking up against "indefinite") breakthrough in the next 2-3 decades. But I would really like to see the pro-SENS argument we're really that close to such a magnitude breakthrough of extension with intact, restored vitality to 20's range.