Juliano Laganá

Hi, I'm Juliano! Curious by nature, teacher by choice. I love math, ML, philosophy, and thinking about thinking. Staff Engineer at Modulai, running my own education business on the side.

Workshops

ML Debugging

Give your ML team a systematic framework for diagnosing and fixing model failures faster and more efficiently.

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Untangle Your Thinking

Build a custom mental model for a goal, problem, or decision; and leave with a repeatable thinking process.

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Selected Writing

2026-03-03

You're always using a model. Is it the right one?

Mental models are simplified representations of reality we use unconsciously. Becoming aware of them lets you swap in better ones and make more effective decisions.

2026-01-22

Searching for truth will hold you back

Pursuing objective truth can paradoxically hinder your ability to influence reality. Prioritizing usefulness over accuracy actually makes you more effective.

2026-01-13

How can we consistently influence reality?

An introduction to the influence curve: your personal boundary representing what aspects of reality you can realistically change, and how to shift it.

Read more on Substack →

About

I'm a Brazilian engineer, educator, and entrepreneur based in Sweden. I work as a Staff Engineer at Modulai, and I run my own business, Juliano Labs, with workshops on ML debugging and clear thinking. I love learning, teaching, building software, and living intentionally.

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