14 Years Later, The Oldest Sci-Fi Show Just Brought Back Its Most Controversial Time-Travel Trick
Briefly

The Doctor finds himself in a typical time loop scenario, where he receives the code to deactivate a deadly suitcase from his future self, leading to a profound exploration of temporal mechanics.
In this paradox, the information about the code exists in a loop, suggesting that the knowledge has no clear origin, challenging our understanding of causality and time in the Doctor Who universe.
Read at Inverse
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