There is a deeply rooted belief in professional culture - especially in engineering and industry - that the hardest worker is the highest performer. That long hours signal commitment. That if you are not overwhelmed, you are simply not working hard enough.

I spent 25 years observing teams across France, the United States, Venezuela, and Belgium. And I can tell you with certainty: this belief is one of the most consistent sources of inefficiency I have ever encountered.

The activity paradox

In a refinery in Texas, I worked with an engineer I will call Marc. Marc was always first in, last out. His calendar was packed, his emails answered at 11pm, his to-do list endless. Everyone looked at him with a mixture of admiration and concern.

Yet when you examined his actual deliverables - projects completed, decisions made, concrete results produced - Marc was consistently behind. His reports were incomplete. His projects dragged on for months.

Marc did not have a motivation problem. He had a method problem. He was confusing activity with performance.

"An open file is a liability. A closed project with results is an asset." Benoit Albinet, LIFT Rule #6

What the data says - and what the field confirms

Productivity research is unambiguous. Beyond 50 hours of work per week, hourly output drops sharply. Beyond 55 hours, it becomes nearly zero - or even negative - due to accumulated errors, poor decisions, and cognitive fatigue.

But this is not only about hours. It is about the quality of focus and the clarity of priorities.

The most effective professionals I have worked alongside did not work more hours than their peers. They did three things differently:

• They finished what they started. No open files left in limbo. No zombie projects draining energy without producing results.
• They chose their battles. They said no - or "not now" - with the same clarity they said yes.
• They protected their cognitive energy. High-stakes decisions were made in the morning, with a clear head. Mechanical tasks were batched or delegated.

The LIFT rule that changes everything: Finish Your Actions

In the LIFT method, Rule #6 is called Finish Your Actions. It sounds obvious. It is not.

Early in my career, my manager called me in and asked a single, direct question: "What have you actually finished?" I began listing everything I had initiated - analyses launched, data gathered, meetings held. He stopped me. He asked again: "No. Tell me what is completed. With a delivered result."

Silence. I could not give a single answer.

That moment redefined how I measured professional value. From that day forward, I have measured my own performance - and that of every team I have led - not by what was started, but by what was concluded.

3 concrete actions to apply this week

1. The open files audit. List your 5 most important projects currently in progress. For each one: what is the specific deliverable? What is the completion date? Could any be stopped without real impact? The answers will surprise you.

2. The one-at-a-time rule. Choose one high-value task each morning and touch nothing else until it is finished or substantially advanced. No emails, no notifications. 90 minutes of complete focus.

3. Measure your week by closures, not hours. Every Friday evening, ask yourself: what did I actually complete this week? This single habit transforms how you understand what it means to work well.

The real question

The next time you find yourself working late, answering emails at 10pm, feeling guilty if you are not "active" - stop and ask yourself:

Am I producing something of genuine value right now, or am I just staying busy to feel useful?

It is often uncomfortable. But it is the question that separates the professionals who grow from those who burn out standing still.