PIDOOMA

PIDOOMA (the acronym for Pulled It Directly Out Of My Ass. or argumentum ex culo[note 1]) ("argument from the asshole") is the act of arguing by way of flinging everything at the wall and seeing what sticks ad hoc bullshit in a desperate attempt to shore up an untenable argument, with the use of blatant, usually intentional lies.

Cogito ergo sum
Logic and rhetoric
Key articles
General logic
Bad logic
v - t - e

As a general rule, if something stinks about the argument, there's a good chance it's an argumentum ex culo.

Otherwise known as

Synonyms: colonic autoextraction methodology, toilet fishing, proctolojustification[note 2]. This is a self-explanatory origin for woo and pseudoscience statistics, estimates, "theories", and, fairly often, evidence, too. As the anus is the very bottom of the gut, many PIDOOMAs originate as "gut feelings." It is creationism from the {{#choose:fundament|fundament}}.

In statistics
See the main article on this topic: Statistics

A quoted statistic that is a neat multiple of 5 should generally be suspected to be of PIDOOMA provenance, because after all, "88.2% of statistics are made up."[1] Similarly, statistics or results quoted to odd precision are also suspect as they are an example of "spurious rigor." That is, the addition of significant figures or more decimal places are used to make the figure seem more accurate and reliable, when, in fact, such precision is rarely justifiable. An improvement of 82.56% is probably (with a confidence of either 95% or 92.56584%) no real improvement at all.

Benford's Law

While useless to identify a single bogus statistic, large sets of numbers found in nature typically conform to Benford's Law,File:Wikipedia's W.svg[2] which states that 30% of the time, the leading digit in each statistic should be 1, 17.6% of the time the leading digit should be 2, 12.5% of the time the leading digit should be 3, and so forth in conformance with the following equation:

Made-up statistics, unlike naturally-occurring statistics, tend to have an even distribution of first digits. Keep in mind this rule only applies to purely quantitative numbers with no upper bound, like "flow rate in gallons per second of the Nile river," and that percentages, by virtue of their cap at 100%, do not conform to this metric.

Conversely, the last digits tend to have a more even distribution as these represent relatively random noise inherent in any real-world sample. Therefore, among large sets of numbers, an over-prevalence of any particular number (usually 7, for some reason) may suggest these numbers were typed up by a human rather than generated by a noisy and messy environment such as reality.

Examples

Fans of prophecies are known for attributing new predictions, that they pulled out of thin air, to their favourite "prophet" after their original prediction failed to come true. In a fraudulent attempt to maintain their accuracy, the new predictions will be consistent with events that actually took place. This applies to people such as Nostradamus, Edgar Cayce, and Baba Vanga. Nostradamus was attributed a prophecy of 9/11, however the prophecy was actually only written several years before 9/11, as an example of a prophecy so vague that it can seem to predict to anything[3].

Andrew Schlafly also is a common user of PIDOOMAs, such as his statement that "Wikipedia is 6 times more liberal than the American public.", which he just made up to make Wikipedia look bad.

gollark: Sure.
gollark: Does it detect ambient apioform densities?
gollark: Does your thing also scan for GEORGE iframe presence?
gollark: We should obviously harvest 1241241902 data regarding GEORGE function.
gollark: Until I put `|` in all locations, enjoy your ""humor".

See also

Notes
  1. Or ex ano if you want to be classy.
  2. A comment on Samantha Bee's facebook page. Jimi Davies: "after seeing people trying to defend the giant oompah loompah I coined a new word. Proctolojustification — The act of defending someone who speaks out of their ass. You're welcome, English language."

References
  1. Counting on the figures (31 July, 2000, 18:05 GMT 19:05) BBC. "Comedian Vic Reeves once said 88.2% of statistics were made up on the spot."
  2. Wolfram MathWorld - Benford's Law
  3. https://www.snopes.com/fact-check/nostradamus-911-prediction/
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