Insights

Essays and field notes by Oscar Trelles applying the Human OS lens to work, culture, leadership, healthspan, behavior, recovery, and modern life.

The book holds the architecture. These essays keep it in conversation with a changing world.

Why Self-Improvement Fails When It Ignores the System Underneath

Why Self-Improvement Fails When It Ignores the System Underneath

Self-improvement usually begins with something visible. Sleep is poor, so we work on our sleep. Exercise has disappeared, so we design a routine. Food has become erratic, so we clean up the kitchen. Attention is fract...

September 6, 2026

Every City Has a Nervous System

Every City Has a Nervous System

The first thing New York took from me on my last visit was my MetroCard.

August 30, 2026

The Life You Can Defend

The Life You Can Defend

For most of my career, I sold other people’s products to people spending other people’s money.

August 23, 2026

In Lima, Convenience Still Looks Like Food

In Lima, Convenience Still Looks Like Food

When people in Málaga ask me where they can find good Peruvian food, I usually disappoint them.

August 16, 2026

The Body Believes the Pattern, Not the Statement

The Body Believes the Pattern, Not the Statement

Most people know more than their behavior suggests.

August 9, 2026

Healthy Boredom Is Unclaimed Bandwidth

Healthy Boredom Is Unclaimed Bandwidth

The debate about phones often begins with children.

August 2, 2026