AI: The author described his experience using Spotify's new DJ feature, which uses artificial intelligence to create personalized playlists. He noticed that his musical preferences had remained virtually unchanged over the past ten years, and began researching the phenomenon of musical paralysis and the science of sound preferences. Research results have shown that ear openness usually peaks at age 24, and after that age it usually declines. 31 is considered the age when musical tastes begin to stagnate and parents stray from the mainstream faster than other groups in the population. The author admits that he is on the cusp of becoming a musical dinosaur, and his musical preferences are becoming more specialized as he ages.