http://www.nytimes.c...amp;oref=slogin
The article in the NY Times is very comprehensive and provided many links to other Kurzweil works. It discusses his predictions about technology and even the Singularity. There is honorable mention of longevity technology and the Kurzweil's prediction for the the Turing Test.
The author also does a comparison with another science prognosticator, Dr. Ramachandran who is not so sanguine about the future.
Are you depressed by the prospect of dying? Well, if you can hang on another 15 years, your life expectancy will keep rising every year faster than you’re aging. And then, before the century is even half over, you can be around for the Singularity, that revolutionary transition when humans and/or machines start evolving into immortal beings with ever-improving software.
BTW, the UN came out with a prediction of its own recently, the world needs to increase food production by 50% in order to meet demand by 2030.
http://www.msnbc.msn.com/id/24942035