Hinchliffe's Rule

Via Ned Wright and Joe Polchinski, Hinchliffe's Rule for interpreting the titles of scientific papers:

If the title is a question, the answer is 'no'.

This reminds me of a 'principle' I myself formulated a few years ago:

The truth of a sentence is invariant under the substitution of 'not' for all occurrences of 'arguably'.

While it is fairly easy to construct sentences which violate this 'principle', these do not seem to occur in practice.

Hinchliffe's Rule currently has a fairly small profile on Google and hasn't yet made it to Wikipedia, but it deserves to be better known. It has even spawned a self-referential spoof paper!