Product Growth

Product Growth

AI Update

How PMs Can Take Advantage of Karpathy's Second Brain

His system got 18.7M views. Here's how to set it up for PM work.

Aakash Gupta
Apr 13, 2026
∙ Paid

Karpathy’s most viral post ever (19.7M views) solved a problem every PM has: the research you did last quarter is gone. The user interviews, the competitive teardowns, the stakeholder context. It all lived in your head and disappeared when the project ended.

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