Retcons are nothing new for publishers like Marvel, and their most recent twist on Cable's history changes his relationship with his father Cyclops forever. Secrets, time-travel shenanigans, and hidden identities are trademark features of the dynamic that Cable shares with his parents Madelyne Pryor, Jean Grey, and Scott Summers. This newest retcon only adds to the endlessly interesting facets of Cable's familial bonds, as confirmed by X-Men editor, Jordan D. White.
First introduced simply as Cable the time-traveling soldier by Louise Simonson and Rob Liefeld in The New Mutants #87, he would eventually be known by other names such as Nathan Dayspring, Askani'son, and most importantly, Nathan Christopher Charles Summers. Due to the nature of Cable's character as a time-traveler and the fact that much of his backstory is established via multiple retcons, Cable's own knowledge of present-day events in the Marvel Universe is always a bit of a mystery. However, a new piece of insight into Cable's character was explored in Gerry Duggan and Phil Noto's recent Cable series, which detailed the adventures of a teenaged Cable during the dawn of the X-Men's Krakoan era.
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The premise of this new series was that teen Cable had killed his older self and decided to spend the rest of his adolescence with his family in the present day. Over the course of the run Cable realizes that he cannot simply erase his future self, and that adult Cable is who Krakoa needs. One of the final revelations of this arc is the twist that Cable's timeline has not changed at all, meaning he remembered that one day he would be killed and resurrected by his teen self. In an interview with AIPT, X-Men
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