Oscar Trelles

The tools around us are getting faster, smarter, and more measurable. The human system still has to absorb the load. The Human OS Manual is a systems-based alternative to fragmented self-improvement. Out October 15. thehumanosmanual.com

When a project succeeds because somebody quietly fixes its broken handoffs, the deadline looks realistic. The extra work disappears from the record. Next time, the same deadline returns. humanosmanual.substack.com/p…

The 5 a.m. club has a data problem. A clock tells you when someone woke up. Not how much they slept, whether the sun was up, or whether that schedule fits their biology. We've confused an early hour with a healthy habit. humanosmanual.substack.com/p…

10 Networking Tips for Web Summit 2026 medium.com/@oscartrelles/10-…

Europe changed its clocks yesterday. The US follows Sunday. But the real story is where civil time lands relative to sunrise. I mapped it worldwide: humanosmanual.substack.com/p…

Europe changes clocks today. Most of the US follows November 1. The Sun follows neither schedule. I built two global maps showing what 7 a.m. means for sunrise across the world. They challenge a familiar assumption behind morning-routine advice. humanosmanual.substack.com/p…

The body does not adapt to the life we meant to live. It adapts to the one that keeps occurring. A calendar can look perfectly organized while the conditions underneath it remain contradictory. humanosmanual.substack.com/p…

The signal may be accurate. The explanation is still work. That distinction becomes more important, not less, as health measurement improves. humanosmanual.substack.com/p…

A metric can tell you whether the target moved. It cannot tell you whether the target deserved the authority you gave it. That is where optimization becomes a judgment question: humanosmanual.substack.com/p…

Specialization becomes fragmentation when the work required to connect different pieces of care has no reliable owner. Very often, the patient or family becomes that owner. humanosmanual.substack.com/p…

We are getting better at finding things early, from wearables to blood markers to continuous monitoring. That is valuable. But earlier knowledge does not automatically become a different trajectory if the rest of life remains the same. humanosmanual.substack.com/p…

A lot of self-improvement evaluates the final behavior while ignoring the sequence that produced it. By the time the visible behavior occurs, much of the negotiation has already happened. humanosmanual.substack.com/p…

AI doesn’t have to overwork us. But if every hour it saves is immediately filled with more work, we’ve automated the friction without changing the operating model.

Meta's CTO says AI productivity gains should mean more work, not more time off. That is the allocation problem in one sentence: efficiency without protected margin doesn't create freedom. It resets the baseline. I wrote about this in June: humanosmanual.substack.com/p…

Sharing this week’s essay from Lima, where convenience still looks like food. Food is an input, but a diet is a system output. Lima keeps reminding me that convenience does not have to mean industrial formulation. humanosmanual.substack.com/p…

What does it really mean to be wealthy? Money's allure often overshadows the untold wealth found in moments, memories, and meaning. It's time to recalibrate our wealth compass. #WealthAndWellness #Business #Coaching #GrowthMindset #Consciousness link.medium.com/sPpfbsLOBEb