you have a 100% of "dying" by vaporization.
That doesn't qualify as "Perfect" to me.
Dead is dead. Just because it makes no difference to an observer doesn't mean that you're not still dead.
<<<Will not be killed so somebody just like me, but not me, can end up where I wanted to go.
Right, yeah, that's the response I would expect most people to have.
When you said "If I saw proof that people had been sent through it without harm" I thought you meant you doubted whether your copy might end up hideously disfigured or brain dead or something on the other side.
If you believe "you" are dying, the problem is to come up with a theory of personal identity that justifies your statement that the replica is
not you. Under Locke's theory, he is you. Under a looser theory which fixes some of the problems with Locke's theory, and seems to make sense in a whole lot of circumstances, he still is you. You can't say that you can just tell whether you're you or not, because the replica totally believes he is you—at the instant of materialization he has the exact same memories and brain state as you, and he feels like his stream of consciousness is totally continuous with the stream of consciousness that was on Earth.
Let's perform this experiment: put you to sleep, scan you, materialize a copy into a room exactly like the one you're asleep in and in exactly the same position you're asleep in. Now, you both wake up. Which one of you is you? Is there
any way to know? If there's no way to know, how can one of you truly claim youness?