A lot of masterpieces are done by 30, whether it's founding FAANG, the theory of relativity, Bohemian Rhapsody, etc. I've always found it interesting that these people do so much with so few resources, then when people like Einstein had the freedom to do what they like, they couldn't outdo what they did in their earlier years. You'd think that with more experience, money, and connections, they'd be besting themselves again and again.