The '9/11 Was an Inside Job' meme originates from the early truther movement of the 2000s, gaining massive internet traction through documentaries like 'Loose Change' and viral catchphrases like 'Jet fuel can't melt steel beams.' While initially rooted in serious political skepticism and conspiracy theories surrounding the September 11 attacks, the phrase eventually evolved into a meta-humor trope used to poke fun at conspiracy culture itself. Today, it is frequently used as a non-sequitur or a punchline for things that are clearly not related to the event, often appearing in images of whiteboards, presentations, or alongside the 'Bush Did 9/11' variation to emphasize ironic skepticism and the absurdity of internet rabbit holes.