Forget the old 'smart features.' AI used to be tucked away—a recommendation here, a better search result there. Now, Generative AI isn't just a supporting function; it's the whole interface. We're talking about a fundamental, total shift in how users interact with our software, our data, and the digital world. This isn't incremental—it’s revolutionary. This keynote challenges product leaders to stop tinkering with features and embrace a generative-first design philosophy. We'll dig into the massive potential of interfaces that don't just respond to a click, but actively create, anticipate, and personalize complex outputs, like full workflow management through a conversational agent. We'll show you how to nail the tricky parts: designing for human ambiguity, setting realistic expectations for model mistakes (yes, the 'hallucination' problem), and mastering natural language as the ultimate universal command line. It's time to rethink the screen."