Rule 34
Rule 34 is a generally accepted if often unexpressed Internet rule, not unlike Catch-22. It states that pornography or sexually related material exists for any conceivable subject, and is often expressed by the simple motto:
If it exists, there is porn for it.
Additionally, it is accepted that the rule itself has limitations and that you cannot be too specific on the content of the item in question. But in a world with a website devoted to fanfic of Roy Orbison in Clingfilm, anything is possible, and Rule 34 remains unchallenged.
Even the creation of porn for the purpose of fulfilling Rule 34 is not in violation of Rule 34. Rule 34 does not relate to the ability to locate the requested porn, but merely vouches that such porn does, in fact, exist, even though it may be in an embryonic stage. Therefore, the creation of porn in order to answer to a Rule 34 challenge does, in fact, qualify as proof of the unassailable nature of Rule 34, as Rule 34 is powerful enough to actually bring new porn into being. (Especially on 4chan, where it is believed the exact wording of Rule 34 was first developed.)
Rule 34 also satisfies the purpose of the Internet and is thus infallible.
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