The 'Excited Katie Bouman' meme features a candid photo of computer scientist Katie Bouman reacting with overwhelming joy as the first image of a black hole was rendered on her laptop in 2019. The image quickly went viral as a symbol of scientific triumph, hard work, and the human element behind massive technological achievements. While it initially celebrated the historic Event Horizon Telescope project, the template evolved into a universal symbol for any 'eureka' moment—from programmers fixing a stubborn bug to students finishing a difficult thesis. It is widely used across social media to express genuine pride and the infectious excitement of seeing long-term effort finally pay off.