Note: No drugs involved. Just an overactive brain on too much tea.
After seeing some weird wacky video on youtube, i'm convinced that
it's totally possible to upload your brain into digital form. The problem is that the brain is analog, and in order to transfer everything the information has to be converted into digital format, and then reconverted into physical analog format. This means that it's more of a digital clone than a backup.
You will not be your clone, but your clone will behave exactly like you.
You are more than just information, the observer that is within you is a physical component. I mean, it's possible gradually replace parts of the brain with digital stuff, but eventually you'll have so little left of yourself that it's more like a mechanical clone seamlessly taking your place. Then again, hasn't that already happened as you grew older? How can you be so sure that you are yourself when your current brain is completely different from your childhood self? Maybe you've already replaced your younger self already and are piggybacking off of his/her memories and never even noticed. Maybe your current you never really existed until the recent 3 years and you never noticed because you were so immersed in the previous runner's memories that you immediately continued where they left off. After all, it's impossible to tell when one user begins and ends when there is no signature event like dying or gaining a new name to represent the transition.
If that's the case, are you just a series of pilots mindlessly carrying the torch for some stranger whom you've never met or cared about? Why would should you care? What have they ever done for you? Maybe it's the empathy which was formed from your shared memories.
I doubt there would be world peace though, since people are often laden with inner conflicts and others flat-out hate themselves. Still, I would imagine that people would be just a little friendlier.