When AI can help build almost anything, what makes a product people love? At the Lenny and Friends Summit, Google’s Robby Stein draws on his work on Instagram Stories, Reels, and AI search to argue that a PM’s most important skill is making great decisions. He shares a three-part approach: understand people’s needs, diagnose why a product isn’t working, and refine the details that make it useful and delightful.
Recorded live at Lenny and Friends Summit on September 10, 2026, in San Francisco.


