Re: Star Trek, what I think it should be.....
Easily solved in dialogue.
"wait, so we can make duplicates of people?"
"Nope, doesn't work like that. This tech can't do that."
The writers can literally put a kibosh on it in a few seconds flat.
"I've eaten breakfast cereals tougher than you! For reference, they were the ones with little marshmellows in them."