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As
medicine and life extension advances, the life expectancy of the population
increases somewhat each year, and this process may accelerate given new
technologies or new knowledge. The longer you live, the more medical advances
will occur during your lifetime which extend your life expectancy. During
this extra time more medical advances can occur, and so on. If the increase
of life expectancy becomes larger than one year longer life/year lived the
breakeven point is reached (after the fusion physics term for the point where
more energy
is produced than is used to drive the reactor) and individuals have a finite
chance of living indefinitely. Quite naturally, the breakeven point
presupposes that medical advances never run into any firm barriers, and that
they can be developed fast enough, which is of course very speculative.
[Anders Sandberg, 1997]
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