Alexandr Wang is the chief AI officer at Meta and co-founder of Scale AI. We talk about the seven-month effort to build Muse, why Meta focused on personal AI agents instead of coding, and how Mark Zuckerberg and Nat Friedman helped shape the product. Alexandr shares how Zuckerberg recruited him after Meta's Llama 4 setback, why he left Scale after nine years, and how he's rebuilding Meta's AI lab around small teams, exceptional talent, and minimal bureaucracy. We also discuss using memes to make a product go viral, the importance of having a single point of view, and why Alexandr believes AI could give everyone the ability to pursue bigger ambitions.