There is not enough reliable public information to confirm the exact source of this specific “Kann es sein” clip from the available data. Online, it is mainly passed around as a short standalone audio for memes, quick edits and reaction posts, especially when creators want a moment to feel doubtful, dramatic or oddly serious. Its usefulness comes from the compact phrase and timing rather than a long setup, which helps it keep circulating across short-form video formats and soundboards.