History Fridge / DoctorWhoS36E11WorldEnoughAndTime

** To add to the Doctor's guilt, remember all the times this could've been prevented: If Yana never opened the fob watch. If Saxon hadn't been shot by Lucy. If Ten had shot Saxon to break the link with Gallifrey. If Twelve had killed Missy at the end of "Death in Heaven." If he had allowed Missy to be executed in "Extremis." [[ForWantOfANail Any of those scenarios]], and the TARDIS crew never travels to that ship to test Missy, and Bill is alive and human. ''And that's just in the revival series.''

* Why did the lost crew members stay for generations on the bottom of the ship? The lifts were working correctly so they shouldn't have had any problem coming back up after they finished fixing the engines,after what would seem like seconds to the people still on the bridge.

* why did the lost crew members stayed for generations on the bottom of the ship? The lifts were working correctly so they shouldn't had any problem coming back up after they finished fixing the engines,after what would seem like seconds to the people still on the bridge.[[/folder]]

[[folder: Fridge logic]]
* why did the lost crew members stayed for generations on the bottom of the ship? The lifts were working correctly so they shouldn't had any problem coming back up after they finished fixing the engines,after what would seem like seconds to the people still on the bridge.

* Cyber-Bill's plaintive "I waited for you" is even ''more'' painful for the Doctor on a personal level, if you remember that he's lost his memories of Clara ... which means the last human he actually recalls having traveled with was ''Amy'', whom he'd also had a terrible habit of leaving behind to wait for him. Only this time, ''he's far too late''.

* Given that around 20 people [[AdamAndEvePlot wouldn't be enough for genetic diversity]], it's that's another reason why the colonists need new bodies.

[[/folder]]

[[folder: Fridge Logic]]
* Since Saxon is aware that Missy is his future self, but Missy is not aware of the reverse, just what happened to Saxon to make him regenerate and completely lose his memory of the event but still know who Missy is? For that matter, how is it even possible for Saxon to know Missy when (in his personal timeline) she doesn't exist yet, yet Missy does not recognize a prior form of herself, despite knowing she was formerly male, and must have known the face she had prior to her regeneration.
** Saxon probably knows who Missy is thanks to Bill telling him what she knows in the time they spent together and likely putting two and two together. Missy not remembering is a driving question, but she clearly wasn't paying much attention to Saxon until he was about to pull off his (very convincing) disguise.
** Time Lords always forget about team ups with other incarnations of themselves, unless they're the oldest (latest) incarnation. So because Missy is there, Saxon will forget as soon as it's over, which is why she doesn't remember it from his perspective.
** Remember that, from Missy's perspective, she was only on the ship for a few minutes before they headed down to the bottom level. Plus, we don't know if the Saxon-Master had ''ever'' gone up to the top: even a short foray to the bridge, after all, would entail leaving the 1056th level unattended for ''years'', during which the locals might mess up whatever plans he's set in motion. So even if Missy remembers that her former self had once gotten involved with the Mondasian Cybermen's origins, she wouldn't necessarily catch on that she's on ''that'' ship right away.
* Given that Time Lords forget anything that happens when they are in the vicinity of a later regeneration of themselves, the TimeDilation means that the Master won't remember ''years'' of his time on the ship, from the moment Missy stepped out of the TARDIS at the top of the ship. If he happened to arrive at the bottom of the ship after or at the same time as Missy's arrival at the top, that explains why she doesn't remember being on the ship before at all, and still gives the Master plenty of time to start up Project Exodus while Missy is playing Doctor and Jorj is pointing his gun at Bill.
** Even if 400 miles' distance isn't exactly "in the vicinity", he'll most likely have forgotten everything from the point where he ''sees Missy on the bridge monitor'': for all that her image was moving in extreme SloMo from his perspective, it was still ''her''.
* Why did the crew on the lower level felt the need to start families and reproduce in the first place? Once they eventually figured out the TimeDilation in place, they still had access to the lifts leading all the way to the top of the ship. So even though they may have already spend weeks/months down there, returning back to the rest of their crew was still an option.
** The Master probably manipulated them into staying put, making up lies about "threats" elsewhere on the ship to stop them from trying to get back to the bridge. As for the patients who go to the bridge, those lifts can only be accessed from the hospital, which the Master is secretly controlling. As far as they knew, they were trapped with no hope of rescue or escape.
** There may not have been enough room on the lifts for everyone to go at once, so anyone left behind would be waiting months for the lifts to return, perhaps years if multiple trips were needed. It would be all too easy for someone to fall in love and get pregnant in that time, and then not want to risk there being any ill effects on an infant to go back up through the time dilation. The brand new shiny city would be awfully tempting to stay in after living in crew quarters, quarters which also likely had no place for babies or children. They may have used keeping an eye on the engines and making sure they kept functioning as a reason/excuse to stay, too, since a failure would lead to the entire ship dropping into the black hole!
** Or maybe the threat on level 507 is ''real'', and the elevators barely made it past that level the first time through. Rather than risk passing through that level again, the original group stayed put, and their descendants verified that the danger existed every dozen generations or so.
** Remember that it's the ''lower'' levels that are in synch with the rest of the universe, not the upper ones. (The ship's engines are in reverse, the bridge pointed towards the black hole that's causing the TimeDilation, not vice versa.) Possibly the repair-crew realized the time difference was so extreme that staying on the bridge would likely mean out-living the rest of their native civilization beyond the ship, so they ''chose'' to stay there and hope some Mondasian rescue ship would track them down rather than return to existence in SloMo.
*** The fastest part of the colony ship could still be painfully slow compared to the rest of the universe (we don't actually know the the radius of the black hole itself, but it could easily be more than 400 miles). Millennia could have gone by during the course of this episode.

** Once again, a soldier with an itchy trigger finger is the UnwittingInstigatorOfDoom. The Doctor and company are all safe and sound until the LeeroyJenkins shows up. Just think on that for a moment- the Doctor despises soldiers so because they are the most unreasonable and irrational characters he runs into. He tries to talk them down, but their sense of duty and fear drives them to a state of panic, and then they blow. They bust out their guns and start shooting. Everything goes to pot. And just like that, they've kick-started the DisasterDominoes. [[PunctuatedForEmphasis Every. Single. Time.]]

* Given that around 20 people [[AdamAndEvePlot wouldn't be enough for genetic diversity]], it's possible that's another reason why the colonists need new bodies.