Visible crew/equipment: In the scene where Scully is performing the autopsy on Micah Hoffman, you can see a shadow of someone moving across the wall behind her. (00:23:35)
Continuity mistake: When Chuck Burks is analyzing the pottery, we can see that one of the pieces has a broken edge. Seconds later, the image shows the piece of pottery with the border preserved. (00:17:12 - 00:18:17)
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