That is really an interesting question and I must say, I don't have the faintest of clues. Both the answers will lead to even more intriguing questions like the ones you have raised here. I think we still don't understand a lot about our own selves and until we do that, this type of tech will be beyond our reach. That's why I think this could be possible, even if, only during the later part of this century, but who really knows, right? haha
Anyways, thanks for making me think even more about it :)
I agree, we have a lot more to learn about consciousness before we could go about uploading it to a server. Although, I could see virtual reality becoming very advanced. The thought of that frankly frightens me, seeing how often people run away from their problems as it is. I think the movie Wall-E shows a fair prediction of a distant future for humanity if we don't solve some of the biggest problems plaguing us today.