The line comes from Thanos in Marvel's Avengers: Endgame, released in 2019, where the Titan declares his belief that his plan cannot be stopped. The quote quickly became one of the film's most repeated moments, shared in clips, edits and reaction videos across social media. Its popularity endured because it works beyond the movie itself, giving creators a shorthand for confidence, inevitability and dramatic finality in almost any online context today.