The phrase comes from Greta Thunberg's address to world leaders at the United Nations Climate Action Summit in New York in September 2019, where she warned that change was coming whether leaders liked it or not. The speech was widely broadcast and quoted, and short clips of her most forceful lines quickly spread across social media and video edits. The line endures because it is short, direct and easily repurposed, letting creators borrow the gravity of a real protest speech for dramatic, ironic or motivational moments.