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Weekly essays on building, AI, and learning in public. Short, honest, useful. Free on Substack.
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Latest editions

The Dogs That Wouldn't Quit
Why some of us freeze when others keep moving.

AI Culture and Innovation Culture Are Not the Same Thing
A friend disagreed. His argument was reasonable. I think he's still wrong, and here's why it matters for how teams actually work.

Build your own AI lab
The skills that will matter most aren't taught anywhere. You have to build them.

The YC CEO open-sourced his playbook. I automated it.
Building Fly Labs in public. Week 1.

I've never had this much fun building
1,091 ideas scored, an AI coach, a whiteboard, 81 prompts, and a music player. All free.

I had 47 ideas. The best one came from a stranger.
How I stopped trusting my gut and built a system instead.

I Forked a Garmin-to-Notion Project and Got Way Too Obsessed With It
Building in public: how a simple fork turned into 6 databases, 60+ activity types, and a fitness dashboard that builds itself.

A casinha no meio do estádio.
Sobre originalidade, conformidade e um porto-riquenho que irritou o homem mais poderoso do mundo.

Como ganhar muito dinheiro no mercado financeiro sendo low profile.
O que aprendi com o cara mais bem pago que ninguém conhece.

The Only Asset That Has Never Crashed
Every billionaire I know loves it.

A nova geração de médicos empreendedores
Fiz um deep dive nos dados da medicina brasileira. O que encontrei me surpreendeu.

O ofício sempre muda
E toda vez que muda, abre espaço pra quem se move primeiro.
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