Product Development

Evals

20 Lessons I've Learned while being humbled by RL (Field notes for fellow Data/PM folks making the leap)

Jun 9, 2026

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21 min read

20 Lessons I've Learned while being humbled by RL (Field notes for fellow Data/PM folks making the leap)

What a handful of experiments has taught me about the pre-training bones of RL environments, rewards, verifiers, holdouts, and harnesses. I’ll share a future Part 2 that gets into optimizer rollouts and policy learning, once that’s done, kicking my a$$.

Adam Grenier

LLM Discoverability

+21

Want AI growth? Look at gaming, not search.

Apr 28, 2026

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3 min read

Want AI growth? Look at gaming, not search.

AI usage looks a lot more like gaming than search: active, immersive, exploratory, and weirdly hard to monetize without ruining the experience. That combination breaks the internet’s default posture.

Adam Grenier

Developer Experience

Human-in-the-Loop is the AI job no one asked for

Apr 14, 2026

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1 min read

Human-in-the-Loop is the AI job no one asked for

The "70% problem" where AI does most of the work, but verification becomes the new (soul-crushing) creation cost.

Adam Grenier

Product Development

20 Lessons I've Learned while being humbled by RL (Field notes for fellow Data/PM folks making the leap)

Want AI growth? Look at gaming, not search.

Human-in-the-Loop is the AI job no one asked for

Context Drift