>>2066245>>2067173>>2067269This isn't how transporters work. If it was, you wouldn't need Heisenberg Compensators, an annular confinement beam, or a pattern buffer (or pattern degradation, etc).
Star Tech largely centers around converting matter directly into energy and vice-versa. The transporter directly converts the transported matter into a coherent packet of energy in the form of an electromagnetic wavefunction; material composition translates into a complex pattern of waves. It then physically moves that packet of energy from one location to another, then reverses the conversion. The human body is actually a chaotic system, meaning that it would require an infinite amount of information to actually copy a specific human, in the same way that within certain input domains, it would require infinite information to precisely predict a six-sided die roll. It's trivial to model something precisely as complex, but impossible to perfectly copy a specific thing to the level of complexity required. That's why your pattern can be "lost"; enough noise gathers in the system that the pattern can no longer be reconstituted as its material form.
The person reassembled on the other side is not a copy; they are precisely the same person as who went in. They have merely experienced a transformation into a form that can be conveniently relocated at the speed of light.
It arguably does kill you in a way that's easily reversible, but many modern medical procedures do that too.