I've taken quite an interest in the prolonging of Life, perhaps indefinitely and through either; biological, digital, or mechanical means. This would mean a state of relative immortality for all organic beings(There are already some animals that have "indefinite lives" such as a species of jellyfish and worm).

So my question is, who would be interested in prolonging their life indefinitely, assuming you will forever be in your physical and mental prime and/or beyond?

http://www.livescience.com/6967-hang-25-year-wait-immortality.html