How did it end up like this? When I first downloaded Duolingo, all I wanted to do was to brush up on my Spanish for the upcoming trip to Tijuana so I could… legal things. Just totally normal legal things. I wanted to can do them. No more questions. Oh, it was great at the start. Duo, the app’s little green owl thing, would ask me how to say “3 apples, please” or remind me if I missed a lesson. But then things changed. Duo changed.