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The Demon of Reason: Logical Fallacies

TED-Ed · 2016

"Logical fallacies are structural flaws in an argument's reasoning, independent of whether the conclusion happens to be true — which means an argument can be both persuasive and invalid at the same time, and learning to spot the structure is what protects you from the persuasion."

The idea

A conclusion can be true and the argument for it can still be garbage. Those are two separate questions, and most people only ever check one of them.

Why it works

The collection catalogs recurring fallacy patterns — strawman (misrepresenting an opponent's position to make it easier to attack), false dilemma (presenting only two options when more exist), ad hominem (attacking the arguer instead of the argument), circular reasoning (assuming the conclusion within the premise) — each illustrated with a short animated case so the pattern becomes recognizable rather than just named.

The takeaway — recall it first
Check your understanding

What is the key distinction this collection draws between an argument's conclusion and its logical structure?

Further reading

Read more about the topic

The explanation above is written with AI assistance. These are the originals — go to them to check it.

  • The Demon of Reason — common logical fallaciesHouse overview / TED-Ed
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Samantha Agoos · Video lessonContinue→
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