Because there's a principle of quantum mechanics called the "no-cloning theorem"[0] which results from not being able to determine the exact quantum states of p

Because there's a principle of quantum mechanics called the "no-cloning theorem"[0] which results from not being able to determine the exact quantum states of particles. If you can't determine them, you can't clone them and you can't teleport them. With the essential caveat that you can use quantum entanglement to transmit the information from one particle to another and thereby destroying the original quantum state of the first particle. So the mechanism of perfect teleportation requires destroying the quantum state of the original. [0]https://en.wikipedia.org/wiki/No-cloning_theorem https://en.wikipedia.org/wiki/No-cloning_theorem (As far as I know this doesn't really cover whether or not we can do "good enough" cloning/teleportation, meaning, good enough to preserve all our bodily functions and memories, even if not perfect at a quantum level.)