How logic betrays the people who trust it

Arthur Conan Doyle, the creator of Sherlock Holmes and one of the sharpest minds of his era, spent years publicly defending photographs of fairies made from paper cutouts. He wasn't fooled because he was naive, but because he was brilliant, and he desperately wanted it to be true. We are not rational animals. We are rationalizing ones. The smarter we are, the better we are at building a convincing case for whatever we already wanted to believe. Logic, when we trust it blindly, doesn't lead us to the truth. It defends the conclusion we'd already fallen in love with.

In this episode of Inner Propaganda, I explore how logic actually works, where it comes from, and where it quietly breaks down. Drawing on Aristotle's three types of reasoning, the psychological concept of dysrationalia, the Allied deception at D-Day, Isaac Newton's financial ruin, and the deep canvassing research by Broockman and Kalla, I walk through two ways to use logic well: building a genuinely strong argument using the Toulmin framework, and, more powerfully, asking the investigative questions that let someone else change their own mind. I also explore why wrapping logic in credibility and story is the difference between a point that gets made and a point that actually lands.

What you will discover:

• Why high intelligence often increases susceptibility to motivated reasoning rather than protecting against it
• The three types of reasoning Aristotle identified, and a practical way to stress-test each one before you trust your conclusions
• What dysrationalia is, and how it explains everything from wartime intelligence failures to market losses among the most sophisticated investors
• Why Adam Grant's concept of logic bullying describes the most common and least effective way people try to change minds
• How the deep canvassing research demonstrates that non-judgmental questions shift beliefs more durably than any amount of evidence-throwing

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