Welcome to The Deductionist Podcast! In this episode, we dive into some of the pseudoscience methods of deduction that were once considered legitimate but have since been debunked.

First up is phrenology - the pseudoscience that claimed bumps and indentations on the skull could reveal personality traits, intelligence, and more. While phrenology was popular in the 19th century, it has been thoroughly discredited as having no scientific merit. We discuss the history of phrenology, some of its failed predictions, and why it ultimately didn't hold up to scientific scrutiny.

Next we look at tyromancy - the practice of divining the future by observing cheese as it curds and coagulates. Though it was practiced in medieval Europe, this form of divination is not supported by modern science. We talk about some of the strange rituals involved and why this cheese-based fortune telling didn't last.

Finally, we explore the pseudoscience of graphology - analyzing handwriting to assess personality. Though still practiced today, most studies have found it is no better than chance at predicting things like intelligence or aptitude. We go into graphology techniques and some high-profile examples of its failed use.

Join us as we separate fact from fiction regarding these mythic pseudoscience deduction methods. See why the modern science of deduction requires much more rigor and evidence to back up any claims.

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Ben and Adam

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