Continuity mistake: When Mulder and Scully first see the artifact rubbing in Skinner's office, the rubbing is quite faint and lightly done. A couple of times during the episode, the rubbing becomes darker and heavier drawn.
Continuity mistake: At The End, when Scully is trying to wipe sand and water from the moving tide away from a section of spacecraft, she stands up and the camera pans out; she is suddenly 3 feet away from the ship and several more away from the tide line.
Continuity mistake: When the two pieces combine into one and burst up into the Bible, in the first shot the neighboring books are leaning against the Bible, while in the following shot they are arranged in a neat pile. (00:05:30)
Continuity mistake: At The Beginning of the scene in his office, in the front shot Skinner wipes his glasses in his hands, but in the following back shot he's wearing them. (00:12:25)
Answer: He was being facetious. He doesn't specifically know that information, he was merely giving examples of the types of information he has access to.
I think so too.
lionhead