Lenny'sLens
← Back to overview

How to build your PM second brain with ChatGPT

Use AI to amplify your craft, not replace it

2025-12-163,358 words2 claims5 podcast connections
Consensus3+ guests independently agreeSynthesisLenny combined multiple guest insightsCurationAmplified one guest's ideaOriginalLenny's own addition

AI is most valuable for PMs as a 'second brain' for synthesis — combining meeting notes, user research, and market data into actionable insights.

Synthesisframework2 connections
2 extends

The key to useful AI assistance is feeding it context over time, not just asking one-off questions — persistent context makes AI dramatically more useful.

Consensusrecommendation3 connections
2 supports1 extend