Theory:Doctor Who television discontinuity and plot holes/Vincent and the Doctor


 * How does going back to check on van Gogh after looking at the monster-in-the-church painting, and preventing the monster from being included in it, not mess up timelines like in Father's Day?
 * Unlike Father's Day, at no point does the Doctor cross his own timeline in this story.
 * One other thing to remember is that from the Doctor's perspective, nearly *every* story is taking place in "the past" (from some perspective). He constantly is changing events. He just (usually) knows how to do it in such a way that it doesn't have the dangerous effects that Rose caused in Father's Day.


 * Why does the Doctor need to hurry Dr Black for an answer of when the picture was painted? The Doctor has a time machine, he can get to Paris any time, he doesn't need to hurry?
 * He's most probably eager to sort Vincent van Gogh out etc, and plus he doesn't want Doctor Black to ramble on with information that he probably mostly already knows.
 * In addition, he probably didn't want to take time away from the museum visitors.
 * The implication does seem to be that he's in a rush, as if the times were somehow connected (similar to the beginning of The End of Time).