OK. I am having problems developing an opinion on this subject. If you used quantum physics to say, teleport yourself somewhere else in the universe, and your original copy was destroyed, would you have died? I know that in the traditional sense you did, but does it matter? Maybe we are constantly being destroyed and remade every second, an incalculable number of times. We wouldnt notice. We don't know that this isnt happening, maybe it is. Maybe that's what time is. I know that the copy wouldnt notice, and it would be you in each and every way, but it wouldn't be <i>you</i>. The material body that you posessed before the teleportation vanished, so logic tells me that I died. But I exist, and I think perfectly normal, so how did I die?