As an online discussion grows longer, the probability of a comparison to Nazis or Hitler approaches one. The name is also widely used for a later rule — that whoever makes the comparison first has lost the argument — which Godwin himself rejects.
Mike Godwin, 1990.
// Where it sits
It was designed to change the behaviour it describes — which makes measuring it against reality slightly beside the point.
What it really means
Godwin's law is unusual among observations about the internet in one specific way: it was not an observation.
In 1990, Mike Godwin introduced it on Usenet as a natural law of Usenet — and he had made it up on purpose. It was a deliberate experiment in memetics: build an idea designed to spread, release it, and see whether spreading it changed behaviour. The intended effect was to make people think twice before reaching for Hitler, by making the reach itself into a recognisable, slightly embarrassing move.
So the law is not a measurement. It is an intervention wearing a measurement's clothes. A 2021 study of a major discussion platform found Nazi comparisons occur less frequently than the law's popular reading implies — which is what you would expect from a corrective that worked, and is anyway not the point.
The part Godwin has spent thirty years correcting is the corollary he never wrote.
Whoever mentions Hitler first loses. He rejects it flatly. The law, he has said, does not articulate a fallacy, and should function “less as a conversation ender and more as a conversation starter.” In 2023 he wrote publicly that comparing a particular politician to Hitler was fine, and that he was not going to stop anyone.
That is a genuinely awkward position for a man whose name is invoked to shut such comparisons down — and it is the correct one. His original concern was that frivolous Nazi comparisons trivialise the Holocaust. A law designed to protect the weight of a comparison, used to forbid the comparison entirely, has been turned exactly inside out.
The distinction that resolves it is one word. Reductio ad Hitlerum names a fallacy — this is bad because Nazis liked it. Godwin's law names a frequency. One tells you an argument is invalid. The other tells you an argument is coming.
Where it comes from
Godwin didn't observe the law. He SEEDED it, deliberately, as an experiment in memetics — to make people think twice before reaching for Hitler.
Myths & misconceptions
Whoever mentions Hitler first loses the argument.
Godwin explicitly rejects this. He has said the law does not articulate a fallacy and should function 'less as a conversation ender and more as a conversation starter' — and in 2023 wrote that comparing a specific politician to Hitler was fine and that he wasn't going to stop anyone.
It describes something that actually happens at that rate.
A 2021 study found Nazi comparisons occur LESS frequently on a major discussion platform than the popular understanding of the law implies. The law was seeded as a corrective, not measured as a frequency.
Compare & contrast
Godwin's law vs reductio ad Hitlerum
Reductio ad Hitlerum names a FALLACY — X is bad because Nazis liked it. Godwin's law names a FREQUENCY. Conflating them is exactly the misreading Godwin spends his time correcting.
| // | Godwin's law | Reductio ad Hitlerum |
|---|---|---|
| Is a | Prediction | Fallacy |
| Says an argument is wrong | No | Yes |
| Ends the discussion | No | Should |
| Author's view | Misused constantly | Genuine error |
How it connects
- Poes Lawthe other named internet law, making a fundamentally different kind of claim.
- Concern Trollingthe other place where an accusation gets used to avoid an argument.
Tell it apart
Questions people ask
- Does invoking Godwin's law win the argument?
- No. Godwin has repeatedly said that reading is wrong, and that the law should start conversations rather than end them.
- Why did he write it?
- To discourage frivolous Nazi comparisons that trivialise the Holocaust. He also framed it in the language of memetics — in his own words, an experiment to 'build a counter-meme' and see whether spreading it changed behaviour.
- Are Hitler comparisons ever fine?
- Godwin himself says yes, when genuinely warranted. He has publicly endorsed them in specific cases, which is a difficult position for a man whose law is used to forbid them.