Think like a world-class product leader in 15 minutes. I take you through product deep dives and leadership insights that turn ambitious professionals into executives.
| Platform |  | Pricing | Freemium | Publishes | Twice weekly |
|---|---|---|---|---|---|
| Issues | 254 | Founded | 7 years ago | Last Issue | 3 days ago |
| Active | |||||
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lewislin.substack.comLatest Issues
O26: Designing the GPU Serving System for an AI Agent
How to design an AI agent’s serving system and handle the common gotchas
A Big Tech company’s AI agent for businesses must answer 5,000 customer messages every second. Adding servers is the usual answer, but every reply here ties up an exp...
O25: Estimating GPU Needs and Cost for an AI Agent
How to size the GPUs and yearly cost for an AI agent
Every product team is racing to ship AI agents, and CFOs are asking how much they cost to run.
O22: The 1M Netflix Subscribers Who Never Watch
You’re a PM at Netflix. 1M subscribers are paid up and current, but haven’t used the platform in 12 months. Is this something to worry about, and what would you do?
Netflix collects a full subscription fee from 1M accounts that haven’t str...
M32H: Facebook Dating Up 40%, Messenger Down 15%. Are They the Same Users?
How to test whether messaging moved instead of disappearing
Facebook Dating usage climbed 40% in the same window that Messenger friend-messaging fell 15%. Most teams read that as attention shifting from friends to dating. This breakdown te...
🤔 Dear Lewis, how do I balance self-promotion and humility in performance reviews?
Time for another episode of Dear Lewis. This time, I’m sharing the story of Alex, one of my executive coaching clients. (Alex is not his real name.)
Alex is tangled up in a web of anxiety about the upcoming midyear performance reviews, par...
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Master strategic product & leadership thinking in 15 minutes | Product deep dives → strategic thinking patterns | Google/Microsoft product executive | Amazon #1 PM author 📚
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