This article contains spoilers for Immortal X-Men #3.
The X-Men comics have finally shone a light on the last mystery from Avengers: Infinity War — revealing what it must have been like for Doctor Strange to explore 14 million futures. The battle against Thanos was the Avengers' greatest test. There's a sense in which its outcome was determined on the moon of Titan, when Doctor Strange explored 14 million future timelines — and found only one in which the heroes won.
This scene has always fascinated viewers. Doctor Strange strongly implied the Ancient One used the Time Stone, her greatest weapon, to similar effect; she peered into the future, identifying threats to all reality, and then used it to tell her how to best them. As exciting as that idea may be, it's left viewers with a lot of unanswered questions: What is it like to view 14 million futures? Why did Doctor Strange explore so many timelines in the first place? And why was there just the one timeline where the Avengers saved the day?
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Curiously, Immortal X-Men #3 — by Kieron Gillen and Lucas Werneck — has provided an answer. The issue is told from the perspective of Destiny, a mutant precog whose powers essentially mean she doesn't need the Time Stone to explore millions of futures. Destiny's unique perception means the comic finally gives readers a sense of what a branched timeline looks like from the inside, and in so doing Immortal X-Menredefines the concept of a nexus."A nexus is an event which pulls timelines toward it," Destiny explains. "Meaning things after it are more predictable, for better for worse. There are other nexuses, small or large. They are waypoints on a journey
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