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When some knowledge is available to most of us, quite evident and widely accepted, we say it's 'common knowledge'.

Let's think about the same situation, except that this so-called knowledge is proven wrong, unfounded from the very beginning, or simple dogma.

'Common rhetoric' seems more like it: things people say all the time despite being wrong. But it implies that there's an outspoken support of those ideas and goes beyond the scope of the expression I'm after.

What should I call that 'common mindset', that erroneous 'usual way of thinking'?

e.g.

#1

-I'm reluctant to ask Sally to prom.

-And I can see why; the common rhetoric is you should go with Janet.

#2

The common rhetoric in the GOP is that tax cuts for the rich stimulate the economy so much that they pay for themselves. This unfounded, nonsensical claim has received the appropriate name of voodoo economics.

Laurel
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    Perhaps you're looking for "Old wive's tale"? – Jim Apr 27 '15 at 05:01
  • That and all the expressions with the same or similar meaning. Synonyms are like pocket monsters. I gotta catch 'em all. – Calculus Knight Apr 27 '15 at 05:05
  • A lot of times you can just use. "everyone knows". Everyone knows you should go with Janet. Everyone knows the moon is made of cheese. Everyone knows it's bad luck to walk under a ladder... – Jim Apr 27 '15 at 05:08
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    @Jim Not sure if you made a typo or not, but it should be "old wives' tale". – Dog Lover Apr 27 '15 at 05:09
  • @Jim However that's the one aspect I want to downplay. 'Everybody knows' implies true knowledge, instead of misconception. – Calculus Knight Apr 27 '15 at 05:09
  • @WindowsDude7- yep sure did. Thanks – Jim Apr 27 '15 at 05:09
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    What's wrong with "common misconceptions"? – amdn Apr 27 '15 at 05:12
  • @Tachibanaian- Actually, what everyone "thinks" they know is often different from the truth. So the phrase can be used for "actual known truths", "facetiously with known false truths" and unwittingly with believed truths – Jim Apr 27 '15 at 05:12
  • @amdn 'common misconceptions' is ok, but I want as many variants as possible. – Calculus Knight Apr 27 '15 at 05:28
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    The usage of rhetoric in your new article example still refers to dishonest and persuasive language, I believe, and not misconception. It implies some people would like us to believe that economical concept, not that it is commonly believed. – Tushar Raj Apr 27 '15 at 07:55
  • @Area51DetectiveFiction Good point. Yet I wonder if isn't somehow implied that there's some pressure to promote that misjudgement that made it commonplace first. In some cases truth is counterintuitive (e.g. heliocentric theory). And about being 'commonly believed', it would be 'commonly believed' within a specific group (in this case, the GOP). – Calculus Knight Apr 28 '15 at 10:16
  • @Tachibanaian; Even if what you suspect is implied, the usage of 'rhetoric' is hardly responsible for it. – Tushar Raj Apr 28 '15 at 10:25
  • @Tachibanaian: Also, misconceptions are always tied down to the times they are believed in. Truth isn't everlasting. Facts change. But we're concerned with a term meaning widely believed false idea. The meaning of the word doesn't change if facts change. – Tushar Raj Apr 28 '15 at 10:30
  • I lost you there. How isn't truth everlasting? Gods aren't destroyed or created; they are or not. Same with physical constants. – Calculus Knight Apr 28 '15 at 17:15

4 Answers4

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A myth or an urban legend sprang to mind on reading the title.

For the particular case, you could consider (common) misconception.

I must admit I don't fully understand exactly what you're trying to express, mainly because of your use of the word rhetoric in the example. Please provide some clarification

Tushar Raj
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fallacy

A fallacy is the use of poor, or invalid, reasoning for the construction of an argument. It is also used to refer to "an argument which appears to be correct but is not." If an argument is fallacious, it does not necessarily mean the conclusion is false. Fallacies are commonly divided into those that are formal and those that are informal. A formal fallacy can neatly be expressed in standard system of logic; for example, propositional logic. Conversely, an informal fallacy originates in an other error in reasoning than an improper logical form. Arguments committing informal fallacies may be formally valid but still be fallacious. Fallacies of presumption fail to prove the conclusion by assuming the conclusion in the proof. Fallacies of weak inference fail to prove the conclusion due to insufficient evidence. Fallacies of distraction fail to prove the conclusion due to irrelevant evidence, like emotion. Fallacies of ambiguity fail to prove the conclusion due to vagueness in words, phrases, or grammar. Some fallacies are committed intentionally (to manipulate or persuade by deception), others unintentionally due to carelessness or ignorance.

A fallacy fits your requirements, it implies faulty reasoning but not necessarily that there's outspoken support for it.

amdn
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I must protest against "the common rhetoric is you should go with Janet." The word does not mean anything like what you think it does, and nobody would say this. Please bury this one with stake through its heart.

Not fallacies, these things don't arise from invalid syllogisms.

Here, people make me shut my windows at night, lest the local sorcerers take the shape of owls and fly in. This is "common knowledge", although of course no one has ever seen one doing it. Your mother told you when you were five, so you believe it the rest of your life, and "Everybody knows". I can't think of anything better than "superstition" or "delusion(al system)".

David Pugh
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  • I added a second example, since the first one was too sardonic to be clear. Can you also bold 'superstition'? Is as accurate, if not more, than 'delusion'. – Calculus Knight Apr 27 '15 at 07:39
1

Try:

Popular misconception, alleged fact, distorted claim, common claim, false allegation, purported truth, brainwashing, propaganda, received truth, disinformation, misinformation, outmoded notion, widely-held notion, false idea, mistaken idea, mistaken notion, communal lie, media lie, mass myth, usual rhetoric...

These are just some of the many possible permutations that might fit your needs, depending on the exact situation or circumstances being described. This is a rich topic for mixing and matching the various possible elements.

Erik Kowal
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