👋 Welcome to Hance Zhang’s Blog

I write about learnings in leadership, AI, product building, and investment. I’m currently based in Tokyo, DM me via X!

GPT-5 Is the Watershed: From 'Model Will Absorb Everything' to 'Environment Is What Matters'

The model and product layers in the AI industry are more clearly separated than ever.

 · 7 min

Compute Is the New Leverage (and Probably the Best One)

Rich concensus is no longer necessary as compute outperforms labor as a leverage

 · 7 min

Bitter Lesson, End-to-end Coding, Creator Economy

The Bitter Lesson is true for research, but product development requires working with the model’s grain, not against it.

 · 8 min

Why Growth Hacking and A/B testing is Bullshit Before PMF

Forget growth hacks before PMF; your first, unscalable mission is to craft a ‘10-star’ user experience that people truly love and rave about

 · 5 min

From 'I Think' to 'I Tried': Building an Experiment-Centric Team Culture with AI

We’ve all been in those meetings: discussing a new idea, an innovative project, and then getting bogged down in endless debate. Everyone speaks with conviction, citing classics (or perhaps just an article they saw yesterday), but the discussion seems to go in circles, often ending inconclusively or with the decision made by the loudest voice, the highest-ranking person, or the most stubborn. Why does this happen? Especially in the realm of innovation?...

 · 8 min

The Scorecard Fallacy: How Promotion Decisions Are Really Made

Your stellar performance review isn’t the key to promotion; the real secret lies in understanding the humans making the decision.

 · 5 min

Corporates Hire by Abundance, Not by Necessity

Big-tech hiring is driven by excess, not necessity.

 · 3 min

Socratic Questioning and the Reality Distortion Field

Simply doing Socratic questioning can be simply annoying.

 · 4 min

The Heresy of Simplicity

The best businesses make complexity invisible.

 · 5 min

Does Proactive Design still mean anything in the world of randomness?

Great design is not about predicting the future but about crafting the antifragile system

 · 6 min