This SignsOnSanDiego article gives a brief look at the way in which the scientific community is divided on the subject of extending healthy life span. "The good news is that most scientists think human life expectancies can be substantially stretched." The public debate taking place today is over how much stretching can take place, and how soon new medical technology can be developed - this debate greatly influences research funding. Personally, I think that the faction represented by S. Jay Olshansky is taking an unreasonable position. The technology and models proposed by Aubrey de Grey for the future of serious anti-aging research are much more plausible - far better to get on and solve the problem of aging than to extrapolate a gloomy prognosis based on historical data on aging!