You asked a colleague to send the meeting materials ahead of time, but they never did. For a moment the thought flashes through your mind: ‘Are they doing this on purpose to make things hard for me?’ But it turns out the colleague had simply typed the wrong email address. The everyday wisdom that tells us not to suspect bad intentions first when something hurtful happens like this is ‘Hanlon’s Razor.’
Put simply, Hanlon’s Razor means the rule of thumb ‘Do not attribute to malice what can be adequately explained by foolishness or mistakes.’ The name ‘razor’ comes from Occam’s Razor, which tells us to shave away unnecessary assumptions. It is a thinking tool for filtering out the less likely explanations among many.
In this piece, we will look in turn at where Hanlon’s Razor came from, why we so easily read other people’s actions as malicious, how to use it in daily life and in organizations, and the limits that arise when we trust this principle too much.
A Way of Thinking That Considers Mistakes Before Malice
Where Did Hanlon’s Razor Come From?

The sentence first appeared in its current form in 1980 in ‘Murphy’s Law Book Two,’ compiled by Arthur Bloch. It was a book collecting humorous maxims resembling Murphy’s Law, which says that anything that can go wrong will go wrong, and in it the sentence “Never attribute to malice that which is adequately explained by stupidity” was printed under the name ‘Hanlon’s Razor.’
(1) Who was Robert J. Hanlon?
The book gave no explanation of who Hanlon was. According to what quotation researcher Mardy Grothe later confirmed by meeting his family, he was Robert J. Hanlon, a computer programmer who worked at the Tobyhanna Army Depot in Pennsylvania, USA. He had enjoyed Bloch’s first book, ‘Murphy’s Law,’ and sent in a maxim of his own, and when that sentence was printed in the second book, it even gained his name.
(2) Similar ideas are much older
In 1774, Goethe wrote in ‘The Sorrows of Young Werther’ that misunderstandings and indolence create more confusion in the world than cunning and malice. In 1941, the science fiction writer Robert Heinlein’s story ‘Logic of Empire’ also contains the line “You have attributed conditions to villainy that simply result from stupidity.” The current sentence spread widely after it was included in 1990 in ‘The Jargon File,’ a dictionary collecting programmers’ slang.
Why Do We Read Others’ Actions as Malicious?

The reason we need Hanlon’s Razor is that the human mind is naturally inclined to think of bad intentions first. Psychology explains this tendency under several names.
(1) Fundamental attribution error
This is the tendency to attribute other people’s actions to their personality or intentions while making light of the situation they are in. Psychologist Lee Ross gave it its name in 1977. When I am late, it is because of traffic, but when someone else is late, it is because they did not care enough.
(2) Hostile attribution bias
This is the tendency to interpret actions whose intent is ambiguous as attacks or slights. A typical case is taking it as a deliberate shove when someone bumps your shoulder in a hallway.
(3) The desire for a story
An explanation like ‘someone planned this’ is easy to understand because the cause and the culprit are clear. By contrast, an explanation that the result came from small mistakes by several people piling up feels complicated and unsatisfying.
Hanlon’s Razor in Daily Life and Organizations

Hanlon’s Razor is most useful not as a grand theory but as a device that makes us pause for a moment when emotions rise.
- Messaging: A message that has been read but not answered is more likely forgotten in a busy moment than ignored. Asking once more before expressing hurt feelings protects the relationship.
- Workplace Errors: When a colleague’s mistakes repeat, check whether the procedures or instructions are confusing before blaming the person. If the same mistake comes from several people, it is usually a problem with the structure.
- Customer Service: An answer that seems unfriendly often turns out to come from a staff member who simply did not have the information. Asking them to check resolves the problem without escalating the conflict.
- Online Communication: Text lacks facial expressions and tone of voice, so short sentences can easily read as cold. Thinking of the most generous interpretation first can reduce unnecessary quarrels.
Things to Keep in Mind When Using Hanlon’s Razor

Hanlon’s Razor is only a rule of thumb that relies on probability, not a verdict that reveals the truth. Used wrongly, it can actually cloud judgment.
(1) Real malice exists too
Cases with clearly bad intentions, such as fraud or deliberate harassment, should not be covered up as mistakes. If the same thing keeps happening to the disadvantage of only one person, the evidence needs to be calmly reexamined.
(2) Responsibility remains even for mistakes
Having no malice does not make the harm disappear. Grey’s Law, ‘Any sufficiently advanced incompetence is indistinguishable from malice,’ points out that if the results are the same, mistakes must also be corrected.
(3) It is not a way of looking down on others
Because of the word ‘stupidity,’ it is easy to mistake it for a phrase that belittles others, but its real meaning is closer to a generosity that recognizes anyone can be busy or clumsy. That is why people these days sometimes replace stupidity with mistakes or ignorance.
Hanlon’s Razor is a thinking habit that leads us, when something hurtful happens, to consider the most common interpretation before the worst one. When we redirect the energy we used to spend hunting for malice toward checking causes and fixing problems, relationships suffer less and solutions come faster. Of course, in the face of repeated harm, we also need the balance to calmly examine the evidence.
Asking and checking once more before suspecting the other person: that is the first step in communication that reduces misunderstandings and builds trust.
