This phrase circulates as a TikTok trend audio rather than a clip from a known film, show or song, and no verified original creator is documented in the provided facts. Its appeal is the universality of the line: la cosa siempre cambia works as a caption for almost any transformation video. Spanish-speaking creators adopted it for edits about personal growth, relationships and style changes, and its sixteen-second length fits TikTok and Reels pacing well, which keeps it in rotation for before-and-after formats.