…ems that teleportation is morally permissible, because no harm has been done to the original person. However, if the person who is teleported is a different person from the one who was copied, then it seems that teleportation is morally impermissible, because it involves the destruction of the original person.
From Earth to Mars: The Implications of Parfit’s Teletransportation Experiment
Donna L Roberts, PhD (Psych Pstuff)