> The implication in my post was that we could prevent these negative effects from happening. Most of them are from disease and body parts that have run their course. Replacement organs and probably nanotechnology could fix many of the problems that plague us today. Obviously nobody wants to live as a vegatable.
This is absolutely required. Don't just preserve the person as a whole, preserve individual organs. I have heard that the DNA copying process has a "cap" on it which effectively limits the number of cell divisions; once that limit is reached, no further cells will spawn, and the organ will eventually die. Scientists have noted that cancer cells do not have this limit, and are seeking to discover a way to "delimit" healthy cells. This, if successful, would grant greatly increased lifespans.

In the Garden of Eden, before the Fall, the bodies of Adam and Eve probably had no such limit - death came as a part of the Curse. (Their bodies would also have had far less problems in other ways - we have collected 6,000 years of such problems.) Scientists may be successful in returning us to that state, but my suspicion is that they won't. The human race is, in my opinion, unable to gain the required knowledge unless God explicitly grants it. But I don't want to get into a religious flamewar, so I'll keep fairly quiet on this subject.

> (There is also the possibility of simply transferring yourself into a machine, which is a whole different can of worms.)
Now *that* would be interesting. Personally, I wouldn't want to try it until it had been thoroughly tested. And my suspicion is that this won't be possible either.