Hi Orlando-
With all due respects, that is precisely the problem for electronically maintained sentiencies in the present world. Scientists may take a long time, but silicon lifeforms abound already. All that is needed for something to be "alive" is that it make autonomous choices that determine its situation. The elctrical power grids that blanket the world are already "intelligent" in that sense.
Go forward a few hundred years and it might be that you could either be reborn as a metal-machine or a meat-machine. My wife would like that - she says that her body is getting too old and cranky and she'd like to jack up her navel and slide a new body in under it. She already has titanium knees. So instead of the bird flu we'd have problems of rust and corrosion. Ultimately, this would make a wonderfully robust and durable race of beings, capable of inhabiting planets with temperatures from slightly above 0
o]/sup] Kelvin to slightly under the meting point of lead, a range of over 700[sup]o Kelvin. As compared to our present life that exists from roughly -30
o K to roughly 40
o K, a relatively narrow range.
At the same time, if we lived forever, what value would life have?
And the memories. If you totally screwed up this life and were remorseful, there would be no kindly hand of death awaiting you to erase the slate. As Shakespeare phrased it in Hamlet, "To sleep - perchance to dream. To dream, aye there's the rub!" I would really be happier if I could forget what a total as* hole I've been in my earlier days! And if I were a Stalin, a Hitler, or even "Torturing George" in Washington, I'd probably find it uncomfortable to become enlightened and be forced to recognize what I really have accomplished. Perhaps memory erasure clinics could substitute for psychotherapy?
dave