Credit score: Unsplash/CC0 Public Area
The most important lie those that create and unfold misinformation perpetrate is that they need you to assume for your self. They warn their target market to not be “sheep” and to not let themselves be instructed what to consider by “mainstream” voices, the “deep state” or different bogey males.
However in a basic case of misdirection, on the identical time they warn you about this, they deploy a variety of manipulative tips to make sure you do not truly assume clearly or independently.
Considered one of these techniques is to seduce you into subscribing to “logical fallacies.” These are flawed patterns of reasoning that sound convincing however result in false or deceptive conclusions.
Logical fallacies are like optical illusions of thought: convincing on the floor, however finally an apparition. Like a magician who tries to persuade you he actually has pulled a rabbit from a hat, getting you to fall for logical fallacies is a sleight of hand that goals to trick you into believing one thing is true that is not.
However when you know the way a magic trick works, it not fools you. In case you acknowledge the commonest logical fallacies and perceive how they work, they in a short time lose their energy. As soon as you may see behind the scenes, the phantasm fades, and you start to grasp issues as they are surely.
Listed below are 10 of the commonest ones it is advisable be looking out for with regards to vaccine misinformation.
1. Attraction to nature fallacy
Typical declare:
“Vaccines are unnatural, so they must be bad.”
Fallacy: Assumes that pure is at all times higher or safer, which isn’t logically or scientifically legitimate. Loads of pure substances are very dangerous or lethal, and loads of man-made merchandise, together with many medicines, are life-saving.
2. Slippery slope fallacy
Typical declare:
“If we allow vaccine mandates, next we’ll lose all medical freedom.”
Fallacy: Assumes a minor or affordable motion will inevitably spiral into one thing extra excessive and implausible. This is likely one of the best logical fallacies to identify and depends on stretching logic to its breaking level as a way to provoke worry. Politicians notably like this tactic.
3. Advert hominem fallacy
Typical declare:
“You can’t trust that doctor, he’s obese and doesn’t know how to look after himself.”
Fallacy: Assaults the particular person as a substitute of partaking with their argument or proof. That is often the go-to technique when one both has no proof to again up what they’re saying or would not have any capability to interact with the proof.
4. False dichotomy fallacy
Typical declare:
You both belief vaccines blindly otherwise you’re a free thinker.
Fallacy: Ignores the nuanced center floor and oversimplifies the alternatives. Typically it is a model of the “you’re either with us or against us” ploy. It frames the controversy in order that one possibility is clearly unreasonable, creating the misunderstanding that the suitable alternative is apparent.
5. Straw man fallacy
Typical declare:
“Pro-vaccine people think vaccines are perfect and have no risks.”
Fallacy: This can be probably the most relied upon tactic by these spreading vaccine misinformation. It depends on misrepresenting the proof to make it simpler to assault. It typically entails various totally different techniques resembling distorting, cherry-picking or oversimplifying the proof. RFK Jr is a giant fan of this tactic.
6. Submit hoc fallacy (false trigger)
Typical declare:
“My child got sick after a vaccine, so the vaccine caused it.”
Fallacy: Confuses correlation with causation with out contemplating different explanations. Simply because two occasions happen at about the identical time doesn’t suggest one precipitated the opposite. The false perception that the MMR vaccine causes autism stems from a single fraudulent research that wrongly inferred causation from a mere correlation.
7. Bandwagon fallacy (attraction to recognition)
Typical declare:
“Millions of people are questioning vaccines so there must be something wrong.”
Fallacy: Assumes {that a} widespread perception is equal to fact. That is additionally known as the “illusory truth effect” and it is one of many foremost causes misinformation has such an affect on social media. When individuals discover themselves in echo chambers the place they’re led to consider a view is often held, even when it’s clearly unfaithful, they’re extra prone to consider it. People are wired as much as observe the herd.
8. Anecdotal fallacy
Typical declare:
“I know someone who got vaccinated and still got sick so vaccines can’t work.”
Fallacy: Makes use of private tales as a substitute of statistical or scientific proof. That is equal to the reference to the grandmother who smoked a pack of cigarettes a day and lived to be 100 years outdated. It is typically the go-to technique when there isn’t a proof to help a declare. Other than the very fact these anecdotes are often not verifiable, anecdotes aren’t any substitute for rigorous scientific proof.
9. Perfectionist fallacy
Typical declare:
“Vaccines aren’t 100% safe and effective, so they are useless.”
Fallacy: Rejects a superb resolution (vaccines) as a result of it’s not excellent. No medical intervention is 100% risk-free. Even one thing universally used like aspirin can have unwanted side effects, and so an extension of this logic is that each single therapeutic intervention is ineffective as a result of it’s not excellent, which is absurd.
10. Base fee fallacy
Typical declare:
“More vaccinated people are getting sick, so vaccines don’t work.”
Fallacy: In a extremely vaccinated inhabitants, most individuals will probably be vaccinated and inevitably some vaccinated individuals will nonetheless get sick. Whereas absolutely the numbers of vaccinated individuals who get sick will outnumber those that didn’t get vaccinated and acquired sick, that is deceptive because the proportion will probably be a lot smaller as a result of sheer numbers of vaccinated people within the inhabitants.
In a nutshell
We reside in a time the place bad-faith actors are simply in a position to unfold deliberate misinformation. Subsequently, all of us want to teach ourselves within the techniques and tips utilized by these con artists, so we’re not fooled.
Offered by
The Dialog
This text is republished from The Dialog underneath a Artistic Commons license. Learn the unique article.
Quotation:
Why dangerous arguments sound convincing: Ten tips of logic that underpin vaccine myths (2025, August 22)
retrieved 23 August 2025
from https://medicalxpress.com/information/2025-08-bad-arguments-convincing-ten-logic.html
This doc is topic to copyright. Other than any honest dealing for the aim of personal research or analysis, no
half could also be reproduced with out the written permission. The content material is offered for data functions solely.

