Third Nacelle wrote:
So with Will & Thomas Riker, one is the "real" Will, and one is a copy? Who determines which one is real?
If we're going to say that you can maintain continuity of identity while transporting, then they are both real. If not, every person who has ever used the transporter is a copy.
The real Riker was lost in a transporter accident before he became commander. The one we have been seeing since the start of TNG has been a copy.