Doctor Who

Warning: This article contains MAJOR SPOILERS for the 2024 Doctor Who Christmas special!

The most recent episode plays around with time in a way that would usually be off the table.

Doctor Who has a highly developed world with laws that govern the way science works.

Doctor Who Season 14 Poster

The time-traveling main character must ensure they dont cross their own timeline, lest bad things happen.

This rule exists for a few different reasons within the TV universe.

Additionally, characters interacting with their past selves can create temporal paradoxes, which often have deadly consequences.

The Fifteenth Doctor from Doctor Who is in front of a purple background with roman numerals.

Custom Image by Yailin Chacon

This is particularly dangerous when the Reapers come into play.

Other temporal paradoxes inDoctor Whoresult in the Big Bang, the Trojan Horse, and Aces birth.

The Blinovitch Limitation Effect is also a concern.

Doctor Who 2024 Christmas Special Ncuti Gatwa as the Fifteenth Doctor TARDIS

“This is ultimately the reason why they cant go back and save companions who die.

Interactions like this usually have negative consequences.

The rule about the Doctor and their companions not crossing their timelines offers stakes for the show.

Gatwa’s Doctor from the 2024 Doctor Who Christmas episode and a Weeping Angel.

Without do-overs, there isnt just an easy fix for deadly choices and mistakes.

The Doctor cant bring back companions from the dead or change fixed events.

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Cast

Doctor Who 2024 Christmas Special Ncuti Gatwa as the Fifteenth Doctor and the Fifteenth Doctor Arguing

Tennant’s Fourteenth Doctor and Gatwa from the 2024 Christmas episode

Headshot Of Ncuti Gatwa In The US premiere of the new season of the Disney+ series Doctor Who

Headshot Of Millie Gibson In The US Premiere Of The New Season Of The Disney+ Series Doctor Who

Doctor Who