Lenny Rachitsky
29 Intel
Lenny Rachitsky is a writer, podcaster, and former product manager whose earlier company was acquired by Airbnb, where he spent time working on growth. He now writes Lenny's Newsletter, the top-ranked business publication on Substack with over a million subscribers, covering product management, growth, and career advice, and hosts the associated Lenny's Podcast. He also runs a community built around the same audience of product and growth professionals.
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Intel
Two eval experts lay out a lightweight process for evaluating AI products: open-code real traces with a single trusted domain expert, avoid committee overhead, and treat evals as an actionable improvement loop.
Zevi Arnovitz, a Meta product manager with no technical background, breaks down the complete Cursor workflow he uses to build and ship real products, which his own engineering team asks him to teach.
Aishwarya Naresh Reganti and Kiriti Badam distill lessons from over 50 enterprise AI deployments at OpenAI, Google, Amazon and Databricks into the practices that separate AI products that ship from those that quietly fail.
AI security researcher Sander Schulhoff, who ran the first prompt injection competition, argues the guardrails companies are buying do not work against a determined attacker, and lays out what to do instead.
Notion's head of product Max Schoening argues agency matters more than skills in the AI era: even with every skill at your fingertips, what separates people is the willingness to act, and it is not evenly distributed.