But I just can't. While this was THE best episode of Doctor Who in a long time it still had some problems if you look back closer to the start of the episode. I personally don't like flashbacks, they remove the tension in the moment, so that is 1 problem. Problem 2 is that the blue guy seemed way to concerned about them taking humans, he isn't human so why is he worrying? The final problem being that The Doctor seems very unfazed by Bill's death, thank god he flipped that guy on his arse in the end, but really it wasn't enough for what happened.