In this episode of Founder Firesides, YC's @harjtaggar talks to @wuweiweiwu and @itsjeffan, co-founders of @MomenticAI, who just raised a $15M Series A. Momentic is the verification layer for software. The AI-powered testing platform impersonates end users to catch bugs before they ship and already powers companies like Notion, Quora, and Built with over a million test runs a day. They discuss why the explosion of AI-generated code makes testing more critical than ever and their vision for a future where engineers write specs, not code.