Retcon stands for "Retroactive Continuity." It's a writing device used to change or undo previously established mythology. It's most commonly found in long running franchises where scriptwriting duties have changed hands. Perhaps a major plot point doesn't go over well with audiences. New writers may wish to undo decisions of the previous staff. Maybe sloppy scriptwriting created a plot hole that needs explanation. Whatever the reason, the Retcon is here to help!
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