Theory:Doctor Who television discontinuity and plot holes/Twice Upon a Time


 * The ruined place where Rusty is is said to be at the centre of the Universe, but shouldn't Terminus be there?
 * Terminus was a time the centre of the KNOWN universe to its creators, while Villengard is Then ACTUAL centre of the universe.
 * Terminus ends up in the hands of the Vanir, a group with a penchant for Norse-sounding names. The similarly named Villengard and its weapon factories may well have been a later commercial enterprise by the same group, and thus located in much the same place.
 * How can either Villengard or Terminus be the centre of the universe? All points in the universe are it's center point since space expands unilaterally.
 * Real World beliefs do not apply to the Whoniverse.


 * The actor playing Ben doesn’t bother with a cockney accent.
 * The framing of the scene suggests we're seeing the Tenth Planet flashbacks subjectively, in the Twelfth Doctor's recollections of the First's final hours, trying to work out how the figure in front of him has just appeared. As the First Doctor was dying at the time, and specifically has difficulty hearing Ben's words in the original, asking him what he said, the Doctor simply doesn't remember Ben's voice accurately for those words.


 * Why does the First Doctor not recognise sonic devices? He invented it (TV: A Christmas Carrol) patented it (Audio: The Unknown) and they were in production on Galifrey when he left (Audio: The Beginning).
 * He is regenerating; maybe he is forgetful. Also, he displays his preference for going hands free; he may just be attempting to prove he and his future self are not the same person; all Doctors do things differently.


 * Why is the First Doctor sexist? He comes from a gender-fluid upbringing, he should be above such stuff and unphased by Bill's sexuality.
 * The Tenth Doctor once told his Fifth incarnation that they were once uptight, old, grumpy, (something like that) "like you do when you're young", implying his original self felt it right to be high profile. Plus, he may have become accustomed to such a style of behavior from having lived in 1960s Britain for a good while.
 * The First Doctor called the criminalisation of homosexuality in the 1960s "society's crime" and didn't care that Oliver Harper was gay. (AUDIO: The Cold Equations)
 * Your question was sexist, as in misogynistic. He also does not berate her sexuality upon learning of it.


 * How did the Doctor get his TARDIS back? Both Doctors left the ship to take the First Doctor's TARDIS, but after deciding to put the captain back, both TARDIS' are suddenly back.
 * You answered your own question. By taking the Captain back, they did the company a favour, hence where given their TARDIS back.