"It's never perfect."
"It's never finished."
AP Capstone is a new program from your tort- er, friends at College Board™. You use enough paper to take down a whole forest in your attempt to market yourself to a college that may very well not know what the course entails. Alternatively, you could just take enough AP classes to show that you can work in a rigorous college-level environment...

Multiple colleges are now having a capstone project at the end of their four-year degree programs for undergraduates, and the class has reportedly been dumbed down a bit since the guinea pig class of 2016. Still, many students do not want the stress of yet another AP class in junior (and senior) year, or they don't plan to go into a research field, and therefore don't take Capstone.