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 | Daily |
|---|---|---|---|---|---|
| Issues | 239 | Founded | 6 years ago | Last Issue | 4 days ago |
| Active | |||||
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lewislin.substack.comLatest Issues
M33B: Should Meta Local Ads Optimize for Reach or Conversion?
The high-ROI answer only works for advertisers who already have data
Conversion-focused local ad campaigns deliver 40-60% higher ROI than reach campaigns. Every performance marketer reads that number the same way: optimize for conversion,...
M33H: Local ad impressions up 35%, local business sign-ups down 8%. What do you do?
How to tell whether ad growth is broad-based or borrowed from fewer advertisers
Meta’s local ad impressions climbed 35% in a quarter when new local business sign-ups for advertising fell 8%. Most teams read the impression number as proof t...
M39H: F1 Score Up 9%, CSAT Down 19% for Meta's Anti-Scam Detector. Is the System to Blame?
How to tell precision decay from a visibility problem in safety metrics
Meta’s anti-scam detection system raised its F1 Score from 0.74 to 0.81, and user satisfaction with that protection fell 19% in the same window. The reflex explanation...
🤔 Dear Lewis, How Do I Handle a Chronic Deadline Dodger Without Micromanaging?
Here we are again, my friends, back for another installment of Dear Lewis.
One of my clients is Greg (not his real name). He’s a VP at a fast-growing tech company. His team is sharp, the kind of engineers other companies fight over. And th...
M39B: Deciding between Recall vs. Precision for Meta's Anti-Scam Detection
Why catching more scams can make the safety score worse
Meta’s anti-scamming product protects billions of users, and the protected ones never know it happened; false-positive victims tell everyone, immediately. Most teams read that asymmet...
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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 \ud83d\udcda
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