Internet rules and laws: the top 10, from Godwin to Poe
The internet has matured into a world of its own, and like the real world, it obeys certain immutable laws. Here are 10 of the most important.

By Tom Chivers
Published: 7:30AM BST 23 Oct 2009

Any internet user will know that the web, like the outside world (or meatspace ), follows certain rules.

We take a look at 10, with the most well-known and widely used towards the top and some of the lesser lights lower down. If you know any more, let us know below.

Equally, of course, if you have formulated one yourself, do likewise but you might want to include your real name, not just a web pseudonym. Otherwise it will be known forever as Gherkin555`s Law, or whatever, and you will miss your shot at posterity.

We should state that we are not endorsing these laws or the views they imply, merely reporting them.

1. Godwin`s Law
The most famous of all the internet laws, formed by Mike Godwin in 1990. As originally stated, it said: `As a Usenet discussion grows longer, the probability of a comparison involving Nazis or Hitler approaches 1.` It has now been expanded to include all web discussions.

It is closely related to the logical fallacy reductio ad Hitlerum , which says Hitler (or the Nazis) liked X, so X is bad , frequently used to denigrate vegetarians and atheists.

Common Godwin`s Law appearances include describing women`s rights campaigners as feminazis , comparing the former US President George W Bush to Hitler, or saying Barack Obama`s proposed healthcare reforms are the new Holocaust.

In its broader sense it can be used to describe any situation where a poster loses all sense of proportion, for example describing New Labour as Zanu-Labour after Robert Mugabe`s Zimbabwean political party Zanu-PF.

As well as the descriptive form, it can be used prescriptively: so if any poster does mention the Nazis in a discussion thread, Godwin`s Law can be invoked, they instantly lose the argument and the thread can be ended.

If this is done deliberately to end the argument, however, it does not apply. This codicil is known as Quirk`s Exception .

2. Poe`s Law
Not to be confused with the law of poetry enshrined by Edgar Allen Poe, the internet Poe`s Law states: Without a winking smiley or other blatant display of humour, it is impossible to create a parody of fundamentalism that someone won`t mistake for the real thing.

It was originally formulated by Nathan Poe in 2005 during a debate on christianforums.com about evolution, and referred to creationism rather than all fundamentalism, but has since been expanded.

Poe`s Law also has an inverse meaning, stating that non-fundamentalists will often mistake sincere expressions of fundamentalist beliefs for parody.

Examples abound one particularly difficult-to-judge site claims that Heliocentrism [the belief that the Earth orbits the Sun, rather than the other way around] is an Atheist Doctrine .

One that must, surely, be a parody is sexinchrist.com (WARNING: link contains adult material), a site that offers Christians advice on the rights and wrongs of such activities as threesomes and pubic shaving, among much more.

However, it is hard to be entirely certain, given the existence of christiannymphos.org (WARNING: link contains adult material), an apparently entirely serious site.

Here is an example of a parody site that embodies both Godwin`s and Poe`s Laws.

3. Rule 34

States: If it exists, there is porn of it. See also Rule 35: If no such porn exists, it will be made. Generally held to refer to fictional characters and cartoons, although some formulations insist there are `no exceptions` even for abstract ideas like non-Euclidean geometry, or puzzlement.

For obvious reasons it is not appropriate for lengthy discussion in a family newspaper, but the recent appearance of Marge Simpson on the cover of Playboy, pictured above, was a (very mild) example of the law in action, and going mainstream.

The spread of fanfic, slash fiction and hentai around the internet, as well as the rise of furries, are making this law more and more accurate every day.

The other 33 rules change frequently, except one and two, which are Do not talk about /b/ and Do NOT talk about /b/ , respectively, referring to a message board on the 4chan.org website.

4. Skitt`s Law

Expressed as `any post correcting an error in another post will contain at least one error itself` or `the likelihood of an error in a post is directly proportional to the embarrassment it will cause the poster.`

It is an online version of the proofreading truism Muphry`s Law, also known as Hartman`s Law of Prescriptivist Retaliation: `any article or statement about correct grammar, punctuation, or spelling is bound to contain at least one eror`.

Language Log quotes the following example, from Paul Ordoveza`s How Now, Brownpau? blog:

`For too long, we linguistic pedants have cringed, watching this phrase used, misused, and abused, again, and again, and again. `This begs the question...` [we hear], and we must brace ourselves as the ignoramii of modern society literally ask a question after the phrase.`

While Mr Ordoveza`s point is entirely valid ( begging the question is a logical fallacy, meaning to `beggar the question`, or assume your conclusion in your premise not to raise the question), the plural of ignoramus is ignoramuses.

It was apparently first stated by G Bryan Lord, referring to a user named Skitt, on Usenet in 1998.

5. Scopie`s Law

States: In any discussion involving science or medicine, citing Whale.to as a credible source loses the argument immediately, and gets you laughed out of the room. First formulated by Rich Scopie on the badscience.net forum.

This law makes little sense without a background knowledge of Whale.to, a conspiracy theory site which includes such items as the complete text of the anti-Semitic hoax Protocols of the Elders of Zion, as well as claims that Aids is caused by vaccination programmes, and that Auschwitz never happened.

It has been expanded by posters on rationalwiki.com to include any use of Answers in Genesis in an argument about creationism and evolution.

6. Danth`s Law (also known as Parker`s Law)

States: If you have to insist that you`ve won an internet argument, you`ve probably lost badly. Named after a user on the role-playing gamers` forum RPG.net.

Danth`s Law was most famously declared in The Lenski Affair , between microbiologist Richard Lenski and the editor of Conservapedia.com, Andrew Schlafly, who cast doubt upon Prof Lenski`s elegant experimental demonstration of evolution.

After what is widely held to be one of the greatest and most comprehensive put-downs in scientific argument from Prof Lenski, Mr Schlafly declared himself the winner.

7. Pommer`s Law

Proposed by Rob Pommer on rationalwiki.com in 2007, this states: A person`s mind can be changed by reading information on the internet. The nature of this change will be from having no opinion to having a wrong opinion.

8. DeMyer`s Laws

Named for Ken DeMyer, a moderator on Conservapedia.com. There are four: the Zeroth, First, Second and Third Laws.

The Second Law states: Anyone who posts an argument on the internet which is largely quotations can be very safely ignored, and is deemed to have lost the argument before it has begun.

The Zeroth, First and Third Laws cannot be very generally applied and will be glossed over here.

9. Cohen`s Law

Proposed by Brian Cohen in 2007, states that: Whoever resorts to the argument that `whoever resorts to the argument that... has automatically lost the debate` has automatically lost the debate.

Has also been stated in the much longer version, `Whoever resorts to the argument that `whoever resorts to the argument that... `whoever resorts to the argument that... `whoever resorts to the argument that... `whoever resorts to the argument that ... `whoever resorts to the argument that... ...has automatically lost the debate` ...has automatically lost the debate` ...has automatically lost the debate` ...has automatically lost the debate` ...has automatically lost the debate` has automatically lost the debate.`

10. The Law of Exclamation

First recorded in an article by Lori Robertson at FactCheck.org in 2008, this states: `The more exclamation points used in an email (or other posting), the more likely it is a complete lie. This is also true for excessive capital letters.`

It is reminiscent of the claim in Terry Pratchett`s Discworld novels that the more exclamation marks someone uses in writing, the more likely they are to be mentally unbalanced.

According to Pratchett, five exclamation marks is an indicator of `someone who wears their underwear on the outside`.