Theory:Doctor Who television discontinuity and plot holes/The Timeless Children


 * How was the Doctor able to recall Jack's recent return in her memories when she wasn't there when it happened?


 * Wow! What an episode! So much to unpack and so many questions. First one: if the Doctor is the Timeless Child from a world other than Gallifrey then she isn't a Timelord. She must have a different biological structure to the Shebogans, contradicting countless references to her/him having two hearts (and two brains, which is a thing now apparently) and to the Chameleon arch which rewrote his Timelord DNA.


 * Second: What happened to the humans who went through the barrier to escape the Cybermen offscreen? Did they go to Gallifrey?
 * If the Master killed all the Timelords how can their cyber-converted dead bodies still retain regenerative abilities? Come to that, if they were preserved intact why didn't they regenerate?
 * What happened to the Cyberium at the end, unless we are meant to presume it was an organic life form?
 * If Brendan was the Timeless Child/Doctor why did he not regenerate when he fell off the cliff?
 * "Brendan" did technically regenerate. The perception filter just hid that fact, making it look as if he simply, miraculously came back to life after his fall. Which makes sense considering the whole point of the filter was to hide the truth.


 * So was the Doctor able to regenerate endlessly all along? If so, that makes the events of The Time of the Doctor a bit more confusing in hindsight; would the Eleventh Doctor have regenerated anyway even if the Time Lords hadn't gifted him a new "cycle"?