Theory:Doctor Who television discontinuity and plot holes/The Satan Pit


 * In The Impossible Planet the TARDIS fell into a crevasse. How did the TARDIS get down the seal and into the Beast's pit?
 * The Beast has been shown to be able to telepathiclly link to living things and take control of them. The TARDIS, being a living thing, could have been taken control of by the Beast.


 * The crevasse could have been down near the pit, and the quakes from the seal opening could have opened it even further. Also, remember that the Doctor mentioned that the TARDIS didn't want to land? Even if she could see she would get the Doctor back, she would have seen the fall was coming. Maybe she didn't want to get anywhere near the beast.


 * As shown in the Visual Dictionary, the crevasse leads directly to the Beast's pit.


 * If the Beast was imprisoned before the universe, and assuming that he was always imprisoned in Krop Tor, then how did Krop Tor and the black hole survive the Big Bang? How could they be carried over from one universe to another? The same could be asked of the Beast himself.
 * The Ancient Lights survived the Big Bang. As an extremely powerful entity, even more so than the Ancient Lights, the Beast may have been able to survive as well and have the ability to hold surrounding objects. Due to the technology holding the planet being unseen and incomprehensible, it is likely that the Disciples of Light created a way of keeping the black hole static, with the planet around it.


 * The Doctor claims that he could not save the Ood as he only had time for one trip. But he has a time machine. How could he not have enough time?
 * In The Runaway Bride the Doctor states he cannot use the TARDIS to time travel if he has become "part of events". This is because he would be in the same place at the same time in twice or more circumstances. The episode Father's Day shows the extreme danger of attempting it.
 * We also see in The Angels Take Manhattan (TV story) that once the Doctor has seen how an event turns out, it's fixed for him and he can't change it.


 * It is clear in The Impossible Planet, that the Beast has total control of Toby and can work his will through him, so why is it necessary to actually open the underground seal at the end of that episode if his mind had already reached beyond it?
 * Though he is able control minds he cannot actually leave the confines of his body until the seal is open and the key to achieving that lies in the intonement of the words which only Toby can translate; and indeed are the means by which the Beast is able to possess him in the first place.
 * Perhaps the interference of the Seal limits the range and power of it's ability to possess.


 * Why bother to possess the Ood and set them on the 'Aliens'-esq rampage, as this only alerts the Doctor and the other Humans to the impending danger? If the Beast's intention is merely to escape, why not simply use Toby to open the seal surreptitiously and then sneak away in the rocketship when no-one is looking and any the wiser?
 * Creating fear is a vital ingredient in the Beast's opening of the seal. If he is after all, just an idea, perhaps he needs other people's awe/terror to make him real.
 * Opening the seal was pretty loud and earthquakey. He needed somebody else to pilot the ship, and to get that, he had to scare them into abandoning the mission.


 * Why didn't Rose just shoot Toby in the head?
 * Even if that would have worked, and even if she had thought of it, Rose could not have been sure that the Beast wouldn't have just jumped to another person. Also, Rose may have been reluctant to directly shoot Toby.
 * Pretty sure that if Rose were the kind to shoot somebody in the head, the Doctor wouldn't be as attached to her.


 * Why did Zack claim that he, Danny and Rose would be the first Human beings to be sucked into a black hole if they already knew that Scooti Manista was sucked into the black hole and as was Toby seconds before?
 * Perhaps he meant "living" Humans.


 * He's also in kind of a tense moment... One might cut him some slack on how precise he is being with his phrasing at such a moment, especially of what is essentially just a grim joke.


 * The Needs of the Many Outweigh the Needs of the Few. With time only for one trip, shouldn't the Doctor have saved all the Ood, not Ida?
 * The Doctor is clearly shown on many occasions to favor human beings, The Master even states in one episode that humans are his "Favorite". It wouldn't be completely correct to say that The Doctor does not make mistakes, or that his morals are perfect. It could also be that it was simpler, mechanistically, and therefore quicker, to save Ida as a lone body then a swarm of Ood. Ood, who are quite frankly prone to every psychic manipulation within a galaxy's breadth. The Ood may have also been tainted or driven insane by The Beast's psychic manipulations, which The Doctor may not have been able to treat or cure effectively. There is no real solution to this if that happens to be the case. As soon as the Ood came within psychic reach of the Beast they were probably doomed by his dominating presence.
 * The morality of that statement is debatable. The Doctor is clearly not Vulcan, and even in Trek that axiom is implied to be both logically correct and morally wrong. More importantly, how would he have been sure there was no psychic influence still in the Ood?


 * Why does the beast's body CATCH ON FIRE when it is falling into the black hole?
 * Perhaps ON FIRE is his natural state. :)


 * If the planet gets sucked into the black hole by smashing the jars, then why would the beast breaking free of his chains do anything?


 * It's Intelligence/Mind was not present within the Beast's actual body, only it's most basic instincts. An animal would not even perceive jars to be of any value or meaning, and by extension, would not even comprehend what is happening around itself (ie; planet collapsing into black hole).