After 25 seasons, The Simpsons has produced nearly enough episodes to achieve sentience. And that means data! Lots of data. This infographic by Beutler Ink shows the primary focus of each of the show’s 552 episodes, graphed so that fans can pinpoint the exact moment that the show began to taste like grandma (even though they were powerless to stop craving it), as certain characters came to the fore and others receded. It’s something to ponder as FXX continues its massive, 12-day Simpsons marathon, and the lives of the Simpsons family and the other denizens of Springfield march on, Sisyphus-like, never making it to that fireworks factory.