To illustrate how user autonomy can be measured and improved in product design, let's look at some examples of products that have done it well. Spotify is a music streaming service that gives users the ability to measure their autonomy through metrics such as number of songs played, playlists created, genres explored, artists followed, and podcasts listened. They can also use features like Discover Weekly, Daily Mixes, Radio, Collaborative Playlists, and Spotify Connect to enhance their autonomy. Netflix is a video streaming service that similarly allows users to measure their autonomy through metrics like number of shows watched, genres browsed, ratings given, profiles created, and downloads made. They can then use features like Smart Downloads, Interactive Content, Top 10 Lists, Profiles, and Recommendations to increase their autonomy. Lastly, Duolingo is a language learning app that provides users with the ability to measure their autonomy through metrics like number of languages learned, lessons completed, skills unlocked, streaks maintained, and XP earned. To improve their autonomy even further they can use Stories, Podcasts, Clubs, Leaderboards, and Tips.