WARNING! THERE MAY BE UNMARKED SPOILERS!
- A lot of people have compared Tasha to River Song. Tasha is the head of the church whose splinter faction kidnapped Melody and made her into River Song in the first place.
- There is a noted difference between Ten and Eleven's final moments. Ten dreaded the idea of "Some new man (that) goes sauntering away", because he'd consider that death. He partied hard and visited all his old companions and generally did everything he could to avoid thinking about the future and his final words were "I don't want to go!" By contrast, Eleven, once he stopped running away from the future by staying at Trenzalore, had over nine hundred (according to Word of God) years to think about the implications of his eventual death and his thoughts prior to regenerating were much more wistful and considered than Ten's. He spoke about how everyone changes and it's no good holding onto the past, but also the importance of remembering who you were, and his final words were "I will always remember when the Doctor was me." After saving Wilfred, the Doctor knew straight away that he was going to regenerate, but still compares it to dying. This time, he comes this close to actually dying and realises that regeneration is an infinitely better alternative. Eleven lived for centuries, even just in his last episode. Ten's lifetime lasted only a few years. Ten is the young man "too young to die" and Eleven is, to borrow a line from Harry Potter, the old man who greeted Death as an old friend, and went with him gladly, and as equals, they departed this life.
- Why was Eleven so sure he wasn't going to live even though he just met a future version of himself in the previous episode and witnessed thirteen TARDISes flying in formation during the saving of Gallifrey? Because only the older Doctors appear to remember these paradoxical meetings, while the younger versions forget; hence how he retained his memory of meeting with Ten and War, but forgot his brushes with the Curator and the Twelfth Doctor, as the latter two threw his timeline slightly out of synch.
- He said it himself in "The Day of the Doctor" to the War Doctor that the previous doctors would not remember their meetings with him. So it makes sense that he would not remember the Twelfth Doctor now.
- The Silents with Kovarian seem more violent, killing an innocent woman for basically no reason. However considering Kovarian is a breakaway sect, maybe she was joined by the most violent Silents, who were at odds with the Church and wanted to act in a more villainous manner, or the Kovarian Silents were genetically engineered to be more so than their counterparts.
- Alternately, the Kovarian Silents were founded by Tasha after she became a Dalek puppet, because the Daleks hoped to eliminate him by siccing a fanatical Church splinter-group on Eleven earlier in his timeline.
- The Kovarian Silents turned on her eventually — were they executing her after she outlived their need of her, or had they realized their actions led to the near-death of the universe, and were attempting to stop her and force the correct timeline?
- Much attention has been given to the fact that Peter Capaldi is a lot older than Matt Smith, and that this goes against the general rule of the Doctor regenerating into bodies that are younger than/approximately the same age as his current one. But considering that the Eleventh Doctor lived long enough to almost die of old age, he actually DID regenerate into a younger body when he became Twelve.
- When Clara goes up to the Crack to Gallifrey near the end of the episode, she implores them to save him because "he is The Doctor." When they were asking "Doctor Who?" they weren't asking for his birth name, but his true name. The name he chose. His true name is The Doctor.
- The creatures that are most commonly known to Whovians as the Silence are genetically engineered. Genetically engineered from what? Given that the Church appears to be primarily human from all that we've seen (barring the mention of the Aplans in "The Time of Angels"), there's every possibility that the Silence were once human. This does explain their unmistakably Earth-inspired fashion choices.
- The popular theory is that, because the Silence are part of a Church Militant, "confessor" is a euphemism for "interrogator". The lightning is used for Electric Torture.
- Barnable is nowhere to be seen after the second Time Skip; the Doctor keeps asking for him whenever someone shows up to talk to him. Barnable is set up like a second Amelia, and the reason why the Doctor decided to stay in Trenzalore. He's the reason why the Doctor had given up by the end: Barnable died, and the Doctor couldn't handle a second instance of Amy's departure. In the end he was convinced that You Can't Fight Fate. Good thing Clara convinced the Time Lords to intervene.
- Alternatively, the person the aged, forgetful Doctor mistakes for Barnable may be meant to be his great-grandson or something and is just meant to indicate how much time has passed, which is more a Heartwarming Moment that the Doctor has safeguarded the lives of so many generations.
- With the resetting of his regeneration clock (and the implication that the Time Lords will do that indefinitely to ensure that someday, the Doctor releases Gallifrey), this drastically ups the chances that a future regeneration will become the Valeyard.
- Unless the events of the Name of the Doctor were moved to a different future, the Doctor and Clara actually did die in an alternate timeline. If the "rewritten" theory is correct, then without the existence of that timeline, Clara couldn't have saved the Doctor from the Great Intelligence, meaning that for that to happen, it still has to exist in some way. Which means that the Time Lords never intervened, the Doctor died on the clock tower, and the Daleks proceeded to massacre everyone still on Trenzalore, Clara included.
- The Silence's plan to prevent the horror of the Time War returning was to blow up the TARDIS. Said explosion basically negated almost all of history, and only by chance of the Pandorica being the perfect prison was all of creation saved. This leads some rather terrifying implications:
- The Silence don't know the TARDIS could destroy the universe because they didn't do their research. The so-called sentinels of history are reckless idiots, with the power to drastically alter history. How much of humanity's development has been screwed over because they didn't do their homework?
- The Silence don't know the TARDIS could destroy the universe because Sexy either is the most safety-poor time machine in existence or because the Doctor's travels and activities has turned Sexy into a flying doomsday device. Either way, the Doctor has been unknowingly putting the whole of existence at threat since he started his journey
- The Silence know the TARDIS could destroy the universe and will use the Pandorica to reboot it, meaning they're either so cocksure and overconfident about their plan working that they're risking everything that every was. See "The Silence are reckless idiots."
- The Silence know the TARDIS could destroy the universe and will use the Pandorica to reboot it, or it was just a happy coincidence. In essence, they consider that, yes, possible or definite destruction of all time and space is better than the possibility of the Time Lords returning and the Time War continuing. Think about what that means.
- It's not just the Kovarian chapter that traveled back through Doctor's timeline. The Alliance at Pandorica consisted of Doctor's most prominent enemies... many of which were present at Trenzalore. It's entirely possible that during the centuries-long siege some of them decided to work together and trap the Doctor in the Pandorica before he ever reached the Trenzalore.
On the headscratchers page.