Today marks the 40th anniversary of one of the worst nuclear disasters in history. Chernobyl disaster. What happened that night was not caused by a single factor. It was a system.
On April 26, 1986, at around 1:23 a.m., a safety test was being conducted in Reactor 4 of the Chernobyl nuclear power plant. During the test, there was a sudden surge in power, followed by explosions that destroyed the reactor core and the building’s roof. After the explosion, a fire broke out and a large amount of radioactive material was released into the atmosphere. Part of the cause was a flawed RBMK reactor design, especially at low power levels. Another part was operator error during the test, including disabling safety systems and making decisions that further increased the reactor’s instability. Chernobyl was not just a “human error” or just a “technical failure,” but a combination of both.
I remember being 12 years old at the time. We were warned not to go outside unless necessary, as a radioactive cloud was spreading across Europe, and it was the first time I felt how an invisible danger could enter everyday life. I developed a rash, and my grandmother believed it was caused by radiation. I don’t know if that was true, but the fear from that time remained very real. For a while, we didn’t eat vegetables, and when we started again, we washed them under running water as if Niagara Falls were flowing in our kitchen.
It is frightening how a safety test can turn into a catastrophe when systems, communication, and safety culture are weak. What is even more frightening is the culture of silence from that time. Information was under strong political control, so the public did not receive clear and accurate guidance for a long time. This created panic, rumors, and distrust, while people wondered whether the rain was “dangerous,” whether it was safe to drink milk, and whether vegetables needed to be washed.
Chernobyl was a nuclear disaster. But the same pattern, silence instead of warning, a system that does not allow mistakes, I recognize far beyond the reactor. I am fully aware that no organizational failure can be compared to the human losses Chernobyl brought. But precisely because those consequences were so enormous, we have an obligation to understand the mechanisms behind it - because those same mechanisms, when left unchecked in organizations, inevitably lead to failure, in a different form, but through the same logic. A culture of silence in organizations most often leads to problems remaining hidden until, over time, they become explosions.
When people cannot say what they think, when they cannot point out problems clearly and openly without fear of judgment, humiliation, or dismissal, stress increases. People withdraw, and communication moves into hallways and whispers. When people don’t speak up, problems do not disappear. They grow - in silence. You will recognize this kind of culture when a meeting ends in apparent consensus, but the moment the door closes, the hallway becomes the place where disagreements are openly expressed, things no one felt safe to say in the room.
This creates enormous pressure for a company, with consequences that are not only financial but also a matter of integrity. At some point, the organization no longer knows who it really is.
To err is human. That is why it is essential to create an environment where people feel safe to say what they see, without fear of being humiliated or punished.
If a culture does not allow mistakes but punishes them, we are not building excellence, we are creating the conditions for catastrophe, with serious consequences. Not necessarily a nuclear one. But one large enough to destroy trust, teams, and the integrity of an organization.
And that is how small Chernobyls are created. In offices.
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