As they die, some will take solace in a religious belief that numbers in the machine represent everything they were and ever will be. Others will just die.
A digital tombstone to a dead race.
If it does, why assume brain-meat is better, as opposed to worse?
I bet many people here would not doubt the moral value of the emulation of a human (feelings and such are simulated to the point of being real), but would highly doubt that it would be, well, the "same" person as the original.
The one thing nobody ever specifies about these crazy schemes, which would otherwise be a great way for humanity to get the hell off of Earth and leave the natural ecosystem to itself in our absence, is who will be root, and how he's going to forcibly round up everyone who doesn't like your crazy futurist take-over-everyone's-minds scheme. Hell, what's going to stop him from rampaging across the real Earth and universe, destroying everything in sight, while everyone else fucks around having fun in VR?
I'm really wondering why this nasty, insane idea has been cropping up more frequently lately in geek circles.
And that's not even starting into the sheer ludicrousness of claiming people's consciousness is pure software when we know that all kinds of enzymes and hormones affect our personalities!
That's a bug to fix in implementation accuracy. I'd obviously prefer more accuracy, but if it comes down to a choice between less-than-perfect available implementation accuracy or dying of old age, I'll happily take a less accurate implementation, especially one that preserves enough information to fix that issue later.
The much more serious bug I am concerned about is the continuity flaw: a copy of me does not make the original me immortal. I'd like the original me to keep thinking forever. Many proposals exist for how to ensure that. The scary problem that needs careful evaluation before implementing any solution: if you do it wrong, the copy will never know the difference, but the original will die.
Well, I'll grant you one thing: not quite sure what it is you're computing, but assuming your plan works, that was a surprisingly short path to conserving the universe's resources until your computational substrate suffers proton decay.
I still have only hunches of what computation has to do with actual lives. Please, explain your Evil Plan out loud.