A week ago I tried to offer a clear example of justified disagreement. Today, I try to offer a clear example where disagreement is not justified. Imagine: On Star Trek, a "transporter" moves people by scanning the location of all their atoms, and then constructing a new version in another location, with all the same sort of atoms in the same relative locations. Yesterday you entered such a transporter, except that this version did not destroy the original copy as did the one on Star Trek. So a minute after you entered the transporter there were two of you, with identical personality, memories, and cognitive styles.